Publications

2022

• Multiple scaling limits of $\operatorname{U}(N)^2 \times \operatorname{O}(D)$ multi-matrix models
  
  • Benedetti Dario
  • Carrozza Sylvain
  • Toriumi Reiko
  • Valette Guillaume
  Ann.Inst.H.Poincare D Comb.Phys.Interact., 2022, 9 (2), pp.367-433. We study the double- and triple-scaling limits of a complex multi-matrix model, with U(N)2×O(D)\mathrm{U}(N)^2\times \mathrm{O}(D)U(N)2×O(D) symmetry. The double-scaling limit amounts to taking simultaneously the large-NNN (matrix size) and large-DDD (number of matrices) limits while keeping the ratio N/D=MN/\sqrt{D}=MN/D​=M fixed. The triple-scaling limit consists in taking the large-MMM limit while tuning the coupling constant λ\lambdaλ to its critical value λc\lambda_cλc​ and keeping fixed the product M(λc−λ)αM(\lambda_c-\lambda)^\alphaM(λc​−λ)α, for some value of α\alphaα that depends on the particular combinatorial restrictions imposed on the model. Our first main result is the complete recursive characterization of the Feynman graphs of arbitrary genus which survive in the double-scaling limit. Next, we classify all the dominant graphs in the triple-scaling limit, which we find to have a plane binary tree structure with decorations. Their critical behavior belongs to the universality class of branched polymers. Lastly, we classify all the dominant graphs in the triple-scaling limit under the restriction to three-edge connected (or two-particle irreducible) graphs. Their critical behavior falls in the universality class of Liouville quantum gravity (or, in other words, the Brownian sphere). (10.4171/aihpd/121)
  DOI : 10.4171/aihpd/121
• Rings and strings: a basis for understanding subleading colour and QCD coherence beyond the two-jet limit
  
  • Forshaw Jeffrey R.
  • Holguin Jack
  • Plätzer Simon
  Journal of High Energy Physics, Springer, 2022, 05, pp.190. Guided by the colour-diagonal structure of collinear singularities, we identify a set of kinematic basis functions that are well suited to the simplification of soft gluon emission amplitudes. In particular, these basis functions, which emerge naturally in the colour flow basis, isolate the subleading colour contributions and improve the statistical convergence of the CVolver amplitude-evolution code. They also allow us to extend current angular-ordered parton showers beyond the azimuthally-averaged, two-jet limit. (10.1007/JHEP05(2022)190)
  DOI : 10.1007/JHEP05(2022)190
• The SAGEX Review on Scattering Amplitudes
  
  • Travaglini Gabriele
  • Brandhuber Andreas
  • Dorey Patrick
  • Mcloughlin Tristan
  • Abreu Samuel
  • Bern Zvi
  • Bjerrum-Bohr N. Emil J.
  • Blümlein Johannes
  • Britto Ruth
  • Carrasco John Joseph M.
  • Chicherin Dmitry
  • Chiodaroli Marco
  • Damgaard Poul H.
  • del Duca Vittorio
  • Dixon Lance J.
  • Dorigoni Daniele
  • Duhr Claude
  • Geyer Yvonne
  • Green Michael B.
  • Herrmann Enrico
  • Heslop Paul
  • Johansson Henrik
  • Korchemsky Gregory P.
  • Kosower David A.
  • Mason Lionel
  • Monteiro Ricardo
  • O'Connell Donal
  • Papathanasiou Georgios
  • Plante Ludovic
  • Plefka Jan
  • Puhm Andrea
  • Raclariu Ana-Maria
  • Roiban Radu
  • Schneider Carsten
  • Trnka Jaroslav
  • Vanhove Pierre
  • Wen Congkao
  • White Chris D.
  Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2022, 55 (44), pp.443001. This is an introduction to, and invitation to read, a series of review articles on scattering amplitudes in gauge theory, gravity, and superstring theory. Our aim is to provide an overview of the field, from basic aspects to a selection of current (2022) research and developments. (10.1088/1751-8121/ac8380)
  DOI : 10.1088/1751-8121/ac8380
• Frequency chirp effects on stimulated Raman scattering in inhomogeneous plasmas
  
  • Luo Mufei
  • Hüller Stefan
  • Chen Min
  • Sheng Zhengming
  Physics of Plasmas, American Institute of Physics, 2022, 29, pp.072709. Previous studies have shown that the use of laser bandwidth may mitigate the growth of stimulated Raman scattering (SRS) in laser plasma interaction experiments, in particular when the spectrum of the driving (or pump) laser is composed of uniformly distributed frequency components with a well-chosen bandwidth [for example, M. Luo et al, Phys. Plasmas 29, 032102 (2022); H. Wen et al, Phys. Plasmas 28, 042109 (2021); R. K. Follett et al, Phys. Plasmas 26, 062111 (2019)]. Here, we investigate the effects of frequency chirp in the pump laser on backward SRS in inhomogeneous plasmas, taking into account kinetic effects associated with the nonlinear detuning of the parametric resonance due to high-amplitude electron plasma waves (EPW). Via theoretical considerations and numerical simulations, using a multi-dimensional particle-in-cell (PIC) code, it is shown that positive frequency chirp rates lead to a displacement of the resonance in the plasma profile. For a sufficiently strong positive chirp rate, such that the resonance displacement is faster than the EPW group velocity, the EPWs prove to remain limited in amplitude such that SRS is suppressed. The required frequency chirp rate corresponds to a laser bandwidth of about 1-2%. (10.1063/5.0096771)
  DOI : 10.1063/5.0096771
• Event Generators for High-Energy Physics Experiments
  
  • Campbell J. M.
  • Diefenthaler M.
  • Hobbs T. J.
  • Höche S.
  • Isaacson J.
  • Kling F.
  • Mrenna S.
  • Reuter J.
  • Alioli S.
  • Andersen J. R.
  • Andreopoulos C.
  • Ankowski A. M.
  • Aschenauer E. C.
  • Ashkenazi A.
  • Baker M. D.
  • Barrow J. L.
  • van Beekveld M.
  • Bewick G.
  • Bhattacharya S.
  • Bierlich C.
  • Bothmann E.
  • Bredt P.
  • Broggio A.
  • Buckley A.
  • Butter A.
  • Butterworth J. M.
  • Byrne E. P.
  • Calame C. M. Carloni
  • Chakraborty S.
  • Chen X.
  • Chiesa M.
  • Childers J. T.
  • Cruz-Martinez J.
  • Currie J.
  • Darvishi N.
  • Dasgupta M.
  • Denner A.
  • Dreyer F. A.
  • Dytman S.
  • El-Menoufi B. K.
  • Engel T.
  • Ravasio S. Ferrario
  • Figueroa D.
  • Flower L.
  • Forshaw J. R.
  • Frederix R.
  • Friedland A.
  • Frixione S.
  • Gallagher H.
  • Gallmeister K.
  • Gardiner S.
  • Gauld R.
  • Gaunt J.
  • Gavardi A.
  • Gehrmann T.
  • Ridder A. Gehrmann-De
  • Gellersen L.
  • Giele W.
  • Gieseke S.
  • Giuli F.
  • Glover E. W. N.
  • Grazzini M.
  • Grohsjean A.
  • Gütschow C.
  • Hamilton K.
  • Han T.
  • Hatcher R.
  • Heinrich G.
  • Helenius I.
  • Hen O.
  • Hirschi V.
  • Höfer M.
  • Holguin J.
  • Huss A.
  • Ilten P.
  • Jadach S.
  • Jentsch A.
  • Jones S. P.
  • Ju W.
  • Kallweit S.
  • Karlberg A.
  • Katori T.
  • Kerner M.
  • Kilian W.
  • Kirchgaeßer M. M.
  • Klein S.
  • Knobbe M.
  • Krause C.
  • Krauss F.
  • Lang J.
  • Lang J. -N.
  • Lee G.
  • Li S. W.
  • Lim M. A.
  • Lindert J. M.
  • Lombardi D.
  • Lönnblad L.
  • Löschner M.
  • Lurkin N.
  • Ma Y.
  • Machado P.
  • Magerya V.
  • Maier A.
  • Majer I.
  • Maltoni F.
  • Marcoli M.
  • Marinelli G.
  • Masouminia M. R.
  • Mastrolia P.
  • Mattelaer O.
  • Mazzitelli J.
  • Mcfayden J.
  • Medves R.
  • Meinzinger P.
  • Mo J.
  • Monni P. F.
  • Montagna G.
  • Morgan T.
  • Mosel U.
  • Nachman B.
  • Nadolsky P.
  • Nagar R.
  • Nagy Z.
  • Napoletano D.
  • Nason P.
  • Neumann T.
  • Nevay L. J.
  • Nicrosini O.
  • Niehues J.
  • Niewczas K.
  • Ohl T.
  • Ossola G.
  • Pandey V.
  • Papadopoulou A.
  • Papaefstathiou A.
  • Paz G.
  • Pellen M.
  • Pelliccioli G.
  • Peraro T.
  • Piccinini F.
  • Pickering L.
  • Pires J.
  • Płaczek W.
  • Plätzer S.
  • Plehn T.
  • Pozzorini S.
  • Prestel S.
  • Preuss C. T.
  • Price A. C.
  • Quackenbush S.
  • Re E.
  • Reichelt D.
  • Reina L.
  • Reuschle C.
  • Richardson P.
  • Rocco M.
  • Rocco N.
  • Roda M.
  • Garcia A. Rodriguez
  • Roiser S.
  • Rojo J.
  • Rottoli L.
  • Salam G. P.
  • Schönherr M.
  • Schuchmann S.
  • Schumann S.
  • Schürmann R.
  • Scyboz L.
  • Seymour M. H.
  • Siegert F.
  • Signer A.
  • Chahal G. Singh
  • Siódmok A.
  • Sjöstrand T.
  • Skands P.
  • Smillie J. M.
  • Sobczyk J. T.
  • Soldin D.
  • Soper D. E.
  • Soto-Ontoso A.
  • Soyez G.
  • Stagnitto G.
  • Tena-Vidal J.
  • Tomalak O.
  • Tramontano F.
  • Trojanowski S.
  • Tu Z.
  • Uccirati S.
  • Ullrich T.
  • Ulrich Y.
  • Utheim M.
  • Valassi A.
  • Verbytskyi A.
  • Verheyen R.
  • Wagman M.
  • Walker D.
  • Webber B. R.
  • Weinstein L.
  • White O.
  • Whitehead J.
  • Wiesemann M.
  • Wilkinson C.
  • Williams C.
  • Winterhalder R.
  • Wret C.
  • Xie K.
  • Yang T-Z.
  • Yazgan E.
  • Zanderighi G.
  • Zanoli S.
  • Zapp K.
  , 2022. We provide an overview of the status of Monte-Carlo event generators for high-energy particle physics. Guided by the experimental needs and requirements, we highlight areas of active development, and opportunities for future improvements. Particular emphasis is given to physics models and algorithms that are employed across a variety of experiments. These common themes in event generator development lead to a more comprehensive understanding of physics at the highest energies and intensities, and allow models to be tested against a wealth of data that have been accumulated over the past decades. A cohesive approach to event generator development will allow these models to be further improved and systematic uncertainties to be reduced, directly contributing to future experimental success. Event generators are part of a much larger ecosystem of computational tools. They typically involve a number of unknown model parameters that must be tuned to experimental data, while maintaining the integrity of the underlying physics models. Making both these data, and the analyses with which they have been obtained accessible to future users is an essential aspect of open science and data preservation. It ensures the consistency of physics models across a variety of experiments.
• Damping of Pseudo-Goldstone Fields
  
  • Delacrétaz Luca V.
  • Goutéraux Blaise
  • Ziogas Vaios
  Physical Review Letters, American Physical Society, 2022, 128 (14), pp.141601. Approximate symmetries abound in nature. If these symmetries are also spontaneously broken, the would-be Goldstone modes acquire a small mass, or inverse correlation length, and are referred to as pseudo-Goldstones. At nonzero temperature, the effects of dissipation can be captured by hydrodynamics at sufficiently long scales compared to the local equilibrium. Here, we show that, in the limit of weak explicit breaking, locality of hydrodynamics implies that the damping of pseudo-Goldstones is completely determined by their mass and diffusive transport coefficients. We present many applications: superfluids, QCD in the chiral limit, Wigner crystal and density wave phases in the presence of an external magnetic field or not, nematic phases, and (anti)ferromagnets. For electronic density wave phases, pseudo-Goldstone damping generates a contribution to the resistivity independent of the strength of disorder, which can have a linear temperature dependence provided the associated diffusivity saturates a bound. This is reminiscent of the phenomenology of strange metal high-<math display="inline"><msub><mi>T</mi><mi>c</mi></msub></math> superconductors, where charge density waves are observed across the phase diagram. (10.1103/PhysRevLett.128.141601)
  DOI : 10.1103/PhysRevLett.128.141601
• Gaussian concentration bounds for stochastic chains of unbounded memory
  
  • Chazottes Jean-Rene
  • Gallo Sandro
  • Takahashi Daniel
  The Annals of Applied Probability, Institute of Mathematical Statistics (IMS), 2022. We obtain optimal Gaussian concentration bounds (GCBs) for stochastic chains of unbounded memory (SCUMs) on countable alphabets. These stochastic processes are also known as ``chains with complete connections'' or ``$g$-measures''. We consider two different conditions on the kernel: (1) when the sum of its oscillations is less than one, or (2) when the sum of its variations is finite, {\em i.e.}, belongs to $\ell^1(\mathbb{N})$. We also obtain explicit constants as functions of the parameters of the model. The proof is based on maximal coupling. Our conditions are optimal in the sense that we exhibit examples of SCUMs that do not have GCB and for which the sum of oscillations is strictly larger than one, or the variation belongs to $\ell^{1+\epsilon}(\mathbb{N})$ for any $\epsilon > 0$. These examples are based on the existence of phase transitions. We also extend the validity of GCB to a class of functions which can depend on infinitely many coordinates. We illustrate our results by three applications. First, we derive a Dvoretzky-Kiefer-Wolfowitz type inequality which gives a uniform control on the fluctuations of the empirical measure. Second, in the finite-alphabet case, we obtain an upper bound on the $\bar{d}$-distance between two stationary SCUMs and, as a by-product, we obtain new (explicit) bounds on the speed of Markovian approximation in $\bar{d}$. Third, we obtain exponential rate of convergence for Birkhoff sums of a certain class of observables.
• Bootstrapping boundary-localized interactions II. Minimal models at the boundary
  
  • Behan Connor
  • Di Pietro Lorenzo
  • Lauria Edoardo
  • van Rees Balt C.
  Journal of High Energy Physics, Springer, 2022, 2022 (03), pp.146. We provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m’th unitary diagonal minimal model. For large m we can demonstrate the existence of the fixed point perturbatively, and for smaller values we use the numerical conformal bootstrap to obtain a sharp kink that smoothly matches onto the perturbative predictions. The wider numerical analysis also yields universal bounds for the spectrum of any other boundary condition for the free scalar field. A second kink in these bounds hints at a second class of non-standard boundary conditions, as yet unidentified. (10.1007/JHEP03(2022)146)
  DOI : 10.1007/JHEP03(2022)146
• Hubbard model on the kagome lattice with time-reversal invariant flux and spin-orbit coupling
  
  • Titvinidze Irakli
  • Legendre Julian
  • Le Hur Karyn
  • Hofstetter Walter
  Physical Review B, American Physical Society, 2022, 105 (23), pp.235102. We study the Hubbard model with time-reversal-invariant flux and spin-orbit coupling and position-dependent onsite energies on the kagome lattice, using numerical and analytical methods. In particular, we perform calculations using real-space dynamical mean-field theory (R-DMFT). To study the topological properties of the system, we use the topological Hamiltonian approach. We obtain a rich phase diagram: For weak and intermediate interactions, depending on the model parameters, the system is in the band insulator, topological insulator, or metallic phase, while for strong interactions the system is in the Mott insulator phase. We also investigate the magnetic phases that occur in this system. For this purpose, in addition to R-DMFT, we also use two analytical methods: perturbation theory for large interactions and onsite energies and stochastic mean-field theory. (10.1103/PhysRevB.105.235102)
  DOI : 10.1103/PhysRevB.105.235102
• Symmetry-Resolved Study of Lattice Vibration and Libration Modes in [Fe(phen)2(NCS)2] Crystal
  
  • Privault Gaël
  • Mevellec Jean-Yves
  • Lorenc Maciej
  • Humbert Bernard
  • Janod Etienne
  • Daro Nathalie
  • Chastanet Guillaume
  • Subedi Alaska
  • Collet Eric
  Crystal Growth & Design, American Chemical Society, 2022, 22 (8), pp.5100-5109. In the family of spin-crossover materials, which undergo thermal conversion between low-spin (LS) and high-spin (HS) phases, it is of great interest to study vibrational modes. On the one hand, vibration modes are characteristic of the spin state, and vibrational spectroscopies are often used for monitoring spin-state switching driven by temperature, pressure, or light. On the other hand, spin-state thermal conversion is an entropy-driven process, and the vibrational entropy change represents the main contribution to the total entropy difference between LS and HS phases at solid state. However, the discussion of vibrations in spin-crossover materials is often limited at the molecular scale. Here we study vibration modes in the [Fe(phen)(2)(NCS)(2)] crystal, and we compare symmetry-resolved vibrational spectroscopy data performed on single crystal to density functional theory calculations performed in a periodic three-dimensional crystal. We discuss the complex nature of vibrational modes in crystals, including the vibration of molecules within the crystalline lattice, with different symmetries and frequencies. We also highlight the presence of many low-frequency libration modes of different symmetries. The contribution of vibrational entropy, added to the electronic entropy, provides a total entropy difference in the solid state, which is in very good agreement with calorimetric measurements. (10.1021/acs.cgd.2c00659)
  DOI : 10.1021/acs.cgd.2c00659
• 2D energy-momentum tensor distributions of nucleon in a large-Nc quark model from ultrarelativistic to nonrelativistic limit
  
  • Lorcé Cédric
  • Schweitzer Peter
  • Tezgin Kemal
  Physical Review D, American Physical Society, 2022, 106 (1), pp.014012. Form factors of the energy-momentum tensor (EMT) can be interpreted in certain frames in terms of spatial distributions of energy, stress, linear and angular momentum, based on 2D or 3D Fourier transforms. This interpretation is in general subject to “relativistic recoil corrections,” except when the nucleon moves at the speed of light like e.g. in the infinite-momentum frame. We show that it is possible to formulate a large-<math display="inline"><msub><mi>N</mi><mi>c</mi></msub></math> limit in which the probabilistic interpretation of the nucleon EMT distributions holds also in other frames. We use the bag model formulated in the large-<math display="inline"><msub><mi>N</mi><mi>c</mi></msub></math> limit as an internally consistent quark model framework to visualize the information content associated with the 2D EMT distributions. In order to provide more intuition, we present results in the physical situation and in three different limits: by considering a heavy-quark limit, a large system-size limit and a constituent-quark limit. The visualizations of the distributions in these extreme limits will help to interpret the results from experiments, lattice QCD, and other models or effective theories. (10.1103/PhysRevD.106.014012)
  DOI : 10.1103/PhysRevD.106.014012
• Signature of the Gluon Orbital Angular Momentum
  
  • Bhattacharya Shohini
  • Boussarie Renaud
  • Hatta Yoshitaka
  Physical Review Letters, American Physical Society, 2022, 128 (18), pp.182002. We propose a novel observable for the experimental detection of the gluon orbital angular momentum (OAM) that constitutes the proton spin sum rule. We consider longitudinal double spin asymmetry in exclusive dijet production in electron-proton scattering and demonstrate that the <math display="inline"><mi>cos</mi><mi>ϕ</mi></math> azimuthal angle correlation between the scattered electron and proton is a sensitive probe of the gluon OAM at small <math display="inline"><mi>x</mi></math> and its interplay with the gluon helicity. We also present a numerical estimate of the cross section for the kinematics of the Electron-Ion Collider. (10.1103/PhysRevLett.128.182002)
  DOI : 10.1103/PhysRevLett.128.182002
• Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report
  
  • Khalek R. Abdul
  • Accardi A.
  • Adam J.
  • Adamiak D.
  • Akers W.
  • Albaladejo M.
  • Al-Bataineh A.
  • Alexeev M. G.
  • Ameli F.
  • Antonioli P.
  • Armesto N.
  • Armstrong W. R.
  • Arratia M.
  • Arrington J.
  • Asaturyan A.
  • Asai M.
  • Aschenauer E. C.
  • Aune S.
  • Avagyan H.
  • Ayerbe Gayoso C.
  • Azmoun B.
  • Bacchetta A.
  • Baker M. D.
  • Barbosa F.
  • Barion L.
  • Barish K. N.
  • Barry P. C.
  • Battaglieri M.
  • Bazilevsky A.
  • Behera N. K.
  • Benmokhtar F.
  • Berdnikov V. V.
  • Bernauer J. C.
  • Bertone V.
  • Bhattacharya S.
  • Bissolotti C.
  • Boer D.
  • Boglione M.
  • Bondì M.
  • Boora P.
  • Borsa I.
  • Bossù F.
  • Bozzi G.
  • Brandenburg J. D.
  • Brei N.
  • Bressan A.
  • Brooks W. K.
  • Bufalino S.
  • Bukhari M. H. S.
  • Burkert V.
  • Buttimore N. H.
  • Camsonne A.
  • Celentano A.
  • Celiberto F. G.
  • Chang W.
  • Chatterjee C.
  • Chen K.
  • Chetry T.
  • Chiarusi T.
  • Chien Y. -T.
  • Chiosso M.
  • Chu X.
  • Chudakov E.
  • Cicala G.
  • Cisbani E.
  • Cloet I. C.
  • Cocuzza C.
  • Cole P. L.
  • Colella D.
  • Collins Ii J. L.
  • Constantinou M.
  • Contalbrigo M.
  • Contin G.
  • Corliss R.
  • Cosyn W.
  • Courtoy A.
  • Crafts J.
  • Cruz-Torres R.
  • Cuevas R. C.
  • d'Alesio U.
  • Dalla Torre S.
  • Das D.
  • Dasgupta S. S.
  • da Silva C.
  • Deconinck W.
  • Defurne M.
  • Degraw W.
  • Dehmelt K.
  • del Dotto A.
  • Delcarro F.
  • Deshpande A.
  • Detmold W.
  • de Vita R.
  • Diefenthaler M.
  • Dilks C.
  • Dixit D. U.
  • Dulat S.
  • Dumitru A.
  • Dupré R.
  • Durham J. M.
  • Echevarria M. G.
  • El Fassi L.
  • Elia D.
  • Ent R.
  • Esha R.
  • Ethier J. J.
  • Evdokimov O.
  • Eyser K. O.
  • Fanelli C.
  • Fatemi R.
  • Fazio S.
  • Fernandez-Ramirez C.
  • Finger M.
  • Finger Jr. M.
  • Fitzgerald D.
  • Flore C.
  • Frederico T.
  • Friščić I.
  • Fucini S.
  • Furletov S.
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  • Gal C.
  • Gamberg L.
  • Gao H.
  • Garg P.
  • Gaskell D.
  • Gates K.
  • Gay Ducati M. B.
  • Gericke M.
  • Girod F. -X.
  • Glazier D. I.
  • Gnanvo K.
  • Goncalves V. P.
  • Gonella L.
  • Gonzalez Hernandez J. O.
  • Goto Y.
  • Grancagnolo F.
  • Greiner L. C.
  • Guryn W.
  • Guzey V.
  • Hatta Y.
  • Hattawy M.
  • Hauenstein F.
  • He X.
  • Hemmick T. K.
  • Hen O.
  • Heyes G.
  • Higinbotham D. W.
  • Hiller Blin A. N.
  • Hobbs T. J.
  • Hohlmann M.
  • Horn T.
  • Hou T. -J.
  • Huang J.
  • Huang Q.
  • Huber G. M.
  • Hyde C. E.
  • Iakovidis G.
  • Ilieva Y.
  • Jacak B. V.
  • Jacobs P. M.
  • Jadhav M.
  • Janoska Z.
  • Jentsch A.
  • Jezo T.
  • Jing X.
  • Jones P. G.
  • Joo K.
  • Joosten S.
  • Kafka V.
  • Kalantarians N.
  • Kang D.
  • Kang Z. B.
  • Kauder K.
  • Kay S. J. D.
  • Keppel C. E.
  • Kim J.
  • Kiselev A.
  • Klasen M.
  • Klein S.
  • Klest H. T.
  • Korchak O.
  • Kostina A.
  • Kotko P.
  • Kovchegov Y. V.
  • Krelina M.
  • Kuleshov S.
  • Kumano S.
  • Kumar K. S.
  • Kumar R.
  • Kumar L.
  • Kumerički K.
  • Kusina A.
  • Kutak K.
  • Lai Y. S.
  • Lalwani K.
  • Lappi T.
  • Lauret J S
  • Lavinsky M.
  • Lawrence D.
  • Lednicky D.
  • Lee C.
  • Lee K.
  • Lee S. H.
  • Levorato S.
  • Li H.
  • Li S.
  • Li X.
  • Li W. B.
  • Ligonzo T.
  • Liu H.
  • Liu M. X.
  • Liu X.
  • Liuti S.
  • Liyanage N.
  • Lorcé C.
  • Lu Z.
  • Lucero G.
  • Lukow N. S.
  • Lunghi E.
  • Majka R.
  • Makris Y.
  • Mandjavidze I.
  • Mantry S.
  • Mäntysaari H.
  • Marhauser F.
  • Markowitz P.
  • Marsicano L.
  • Mastroserio A.
  • Mathieu V.
  • Mehtar-Tani Y.
  • Melnitchouk W.
  • Mendez L.
  • Metz A.
  • Meziani Z. -E.
  • Mezrag C.
  • Mihovilovič M.
  • Milner R.
  • Mirazita M.
  • Mkrtchyan H.
  • Mkrtchyan A.
  • Mochalov V.
  • Moiseev V.
  • Mondal M. M.
  • Morreale A.
  • Morrison D.
  • Motyka L.
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  • Vancura P.
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  • Venugopalan R.
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  • Winney D.
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  • Xiao B. W.
  • Xie J.
  • Xing H.
  • Xu Q. H.
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  • Zurita P.
  Nuclear Physics A, North-Holland ; Elsevier [1967-....], 2022, 1026, pp.122447. This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC will be a powerful new high-luminosity facility in the United States with the capability to collide high-energy electron beams with high-energy proton and ion beams, providing access to those regions in the nucleon and nuclei where their structure is dominated by gluons. Moreover, polarized beams in the EIC will give unprecedented access to the spatial and spin structure of the proton, neutron, and light ions. The studies leading to this document were commissioned and organized by the EIC User Group with the objective of advancing the state and detail of the physics program and developing detector concepts that meet the emerging requirements in preparation for the realization of the EIC. The effort aims to provide the basis for further development of concepts for experimental equipment best suited for the science needs, including the importance of two complementary detectors and interaction regions. This report consists of three volumes. Volume I is an executive summary of our findings and developed concepts. In Volume II we describe studies of a wide range of physics measurements and the emerging requirements on detector acceptance and performance. Volume III discusses general-purpose detector concepts and the underlying technologies to meet the physics requirements. These considerations will form the basis for a world-class experimental program that aims to increase our understanding of the fundamental structure of all visible matter (10.1016/j.nuclphysa.2022.122447)
  DOI : 10.1016/j.nuclphysa.2022.122447
• Signatures of the Yang-Mills deconfinement transition from the gluon two-point correlator
  
  • van Egmond Duifje Maria
  • Reinosa Urko
  Physical Review D, American Physical Society, 2022, 106 (7), pp.074005. We evaluate the longitudinal or (chromo-)electric Yang-Mills gluon propagator in the recently proposed center-symmetric Landau gauge at finite temperature [D. M. van Egmond , SciPost Phys. 12, 087 (2022).]. To model the effect of the Gribov copies in the infrared, we use the Curci-Ferrari model which, in turn, allows us to rely on perturbative calculations. At one-loop order in the SU(2) case, the so-obtained longitudinal gluon propagator provides a clear signature for <math display="inline"><msub><mi>Z</mi><mn>2</mn></msub></math> center-symmetry breaking with a singular behavior, characteristic of a continuous phase transition. This is in sharp contrast with what is found within the standard Landau gauge. We also identify various signatures for <math display="inline"><msub><mi>Z</mi><mn>3</mn></msub></math> center-symmetry breaking in the SU(3) case in the form of genuine order parameters. Among those, we find that the gluon propagator, although degenerate along the diagonal color directions in the confining phase, becomes nondegenerate in the deconfined phase. Our results open new ways of identifying the transition from correlation functions both within continuum approaches and on the lattice. (10.1103/PhysRevD.106.074005)
  DOI : 10.1103/PhysRevD.106.074005
• The SAGEX Review on Scattering Amplitudes, Chapter 11: Soft Theorems and Celestial Amplitudes
  
  • Mcloughlin Tristan
  • Puhm Andrea
  • Raclariu Ana-Maria
  Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2022, 55 (44), pp.443012. The soft limits of scattering amplitudes have been extensively studied due to their essential role in the computation of physical observables in collider physics. The universal factorisation that occurs in these kinematic limits has been shown to be related to conservation laws associated with asymptotic, or large, gauge symmetries. This connection has led to a deeper understanding of the symmetries of gauge and gravitational theories and to a reformulation of scattering amplitudes in a basis of boost eigenstates which makes manifest the two-dimensional global conformal symmetry of the celestial sphere. The recast, or celestial, amplitudes possess many of the properties of conformal field theory correlation functions which has suggested a path towards a holographic description of asymptotically flat spacetimes. In this review we consider these interconnected developments in our understanding of soft theorems, asymptotic symmetries and conformal field theory with a focus on the structure and symmetries of the celestial amplitudes and their holographic interpretation. (10.1088/1751-8121/ac9a40)
  DOI : 10.1088/1751-8121/ac9a40
• Result of the MICROSCOPE weak equivalence principle test
  
  • Touboul Pierre
  • Métris Gilles
  • Rodrigues Manuel
  • Bergé Joel
  • Robert Alain
  • Baghi Quentin
  • André Yves
  • Bedouet Judicael
  • Boulanger Damien
  • Bremer Stefanie
  • Carle Patrice
  • Chhun Ratana
  • Christophe Bruno
  • Cipolla Valerio
  • Damour Thibault
  • Danto Pascale
  • Demange Louis
  • Dittus Hansjoerg
  • Dhuicque Océane
  • Fayet Pierre
  • Foulon Bernard
  • Guidotti Pierre-Yves
  • Hagedorn Daniel
  • Hardy Emilie
  • Huynh Phuong-Anh
  • Kayser Patrick
  • Lala Stephanie
  • Lämmerzahl Claus
  • Lebat Vincent
  • Liorzou Françoise
  • List Meike
  • Löffler Frank
  • Panet Isabelle
  • Pernot-Borràs Martin
  • Perraud Laurent
  • Pires Sandrine
  • Pouilloux Benjamin
  • Prieur Pascal
  • Rebray Alexandre
  • Reynaud Serge
  • Rievers Benny
  • Selig Hanns
  • Serron Laura
  • Sumner Timothy
  • Tanguy Nicolas
  • Torresi Patrizia
  • Visser Pieter
  Classical and Quantum Gravity, IOP Publishing, 2022, 39 (20), pp.204009. The space mission MICROSCOPE dedicated to the test of the equivalence principle (EP) operated from April 25, 2016 until the deactivation of the satellite on October 16, 2018. In this analysis we compare the free-fall accelerations (a$_{A}$ and a$_{B}$) of two test masses in terms of the Eötvös parameter . No EP violation has been detected for two test masses, made from platinum and titanium alloys, in a sequence of 19 segments lasting from 13 to 198 h down to the limit of the statistical error which is smaller than 10$^{−14}$ for η(Ti, Pt). Accumulating data from all segments leads to η(Ti, Pt) = [−1.5 ± 2.3 (stat) ± 1.5 (syst)] × 10$^{−15}$ showing no EP violation at the level of 2.7 × 10$^{−15}$ if we combine stochastic and systematic errors quadratically. This represents an improvement of almost two orders of magnitude with respect to the previous best such test performed by the Eöt-Wash group. The reliability of this limit has been verified by comparing the free falls of two test masses of the same composition (platinum) leading to a null Eötvös parameter with a statistical uncertainty of 1.1 × 10$^{−15}$. (10.1088/1361-6382/ac84be)
  DOI : 10.1088/1361-6382/ac84be
• Nonlinear Propagation and Filamentation on 100 Meter Air Path of Femtosecond Beam Partitioned by Wire Mesh
  
  • Geints Yuri E
  • Minina Olga V
  • Geints Ilia Yu
  • Seleznev Leonid V
  • Pushkarev Dmitrii V
  • Mokrousova Daria V
  • Rizaev Georgy E
  • Shipilo Daniil E
  • Nikolaeva Irina A
  • Kurilova Maria V
  • Panov Nikolay A
  • Kosareva Olga G
  • Houard Aurélien
  • Couairon Arnaud
  • Ionin Andrey A
  • Liu Weiwei
  Sensors, MDPI, 2022, 22 (17), pp.6322. High-intensity (∼1 TW/cm2 and higher) region formed in the propagation of ∼60 GW, 90 fs Ti:Sapphire laser pulse on a ∼100 m path in air spans for several tens of meters and includes a plasma filament and a postfilament light channel. The intensity in this extended region is high enough to generate an infrared supercontinuum wing and to initiate laser-induced discharge in the gap between the electrodes. In the experiment and simulations, we delay the high-intensity region along the propagation direction by inserting metal-wire meshes with square cells at the laser system output. We identify the presence of a high-intensity region from the clean-spatial-mode distributions, appearance of the infrared supercontinuum wing, and occurrence of the laser-induced discharge. In the case of free propagation (without any meshes), the onset of the high-intensity zone is at 40–52 m from the laser system output with ∼30 m extension. Insertion of the mesh with 3 mm cells delays the beginning of the high-intensity region to 49–68 m with the same ∼30 m extension. A decrease in the cell size to 1 mm leads to both delay and shrinking of the high-intensity zone to 71–73 m and 6 m, respectively. Three-dimensional simulations in space confirm the mesh-induced delay of the high-intensity zone as the cell size decreases. (10.3390/s22176322)
  DOI : 10.3390/s22176322
• New horizons for fundamental physics with LISA
  
  • Arun K.G.
  • Belgacem Enis
  • Benkel Robert
  • Bernard Laura
  • Berti Emanuele
  • Bertone Gianfranco
  • Besancon Marc
  • Blas Diego
  • Böhmer Christian G.
  • Brito Richard
  • Calcagni Gianluca
  • Cardenas-Avendaño Alejandro
  • Clough Katy
  • Crisostomi Marco
  • de Luca Valerio
  • Doneva Daniela
  • Escoffier Stephanie
  • Ezquiaga Jose Maria
  • Ferreira Pedro G.
  • Fleury Pierre
  • Foffa Stefano
  • Franciolini Gabriele
  • Frusciante Noemi
  • García-Bellido Juan
  • Herdeiro Carlos
  • Hertog Thomas
  • Hinderer Tanja
  • Jetzer Philippe
  • Lombriser Lucas
  • Maggio Elisa
  • Maggiore Michele
  • Mancarella Michele
  • Maselli Andrea
  • Nampalliwar Sourabh
  • Nichols David
  • Okounkova Maria
  • Pani Paolo
  • Paschalidis Vasileios
  • Raccanelli Alvise
  • Randall Lisa
  • Renaux-Petel Sébastien
  • Riotto Antonio
  • Ruiz Milton
  • Saffer Alexander
  • Sakellariadou Mairi
  • Saltas Ippocratis D.
  • Sathyaprakash B.S.
  • Shao Lijing
  • Sopuerta Carlos F.
  • Sotiriou Thomas P.
  • Stergioulas Nikolaos
  • Tamanini Nicola
  • Vernizzi Filippo
  • Witek Helvi
  • Wu Kinwah
  • Yagi Kent
  • Yazadjiev Stoytcho
  • Yunes Nicolas
  • Zilhao Miguel
  • Afshordi Niayesh
  • Angonin Marie-Christine
  • Baibhav Vishal
  • Barausse Enrico
  • Barreiro Tiago
  • Bartolo Nicola
  • Bellomo Nicola
  • Ben-Dayan Ido
  • Bergshoeff Eric A.
  • Bernuzzi Sebastiano
  • Bertacca Daniele
  • Bhagwat Swetha
  • Bonga Béatrice
  • Burko Lior M.
  • Compere Geoffrey
  • Cusin Giulia
  • da Silva Antonio
  • Das Saurya
  • de Rham Claudia
  • Destounis Kyriakos
  • Dimastrogiovanni Ema
  • Duque Francisco
  • Easther Richard
  • Farmer Hontas
  • Fasiello Matteo
  • Fisenko Stanislav
  • Fransen Kwinten
  • Frauendiener Jörg
  • Gair Jonathan
  • Gergely Laszlo Arpad
  • Gerosa Davide
  • Gualtieri Leonardo
  • Han Wen-Biao
  • Hees Aurelien
  • Helfer Thomas
  • Hennig Jörg
  • Jenkins Alexander C.
  • Kajfasz Eric
  • Kaloper Nemanja
  • Karas Vladimir
  • Kavanagh Bradley J.
  • Klioner Sergei A.
  • Koushiappas Savvas M.
  • Lagos Macarena
  • Poncin-Lafitte Le Christophe
  • Lobo Francisco S.N.
  • Markakis Charalampos
  • Martin-Moruno Prado
  • Martins C.J. A.P.
  • Matarrese Sabino
  • Mayerson Daniel R.
  • Mimoso José P.
  • Noller Johannes
  • Nunes Nelson J.
  • Oliveri Roberto
  • Orlando Giorgio
  • Pappas George
  • Pikovski Igor
  • Pilo Luigi
  • Podolsky Jiri
  • Pratten Geraint
  • Prokopec Tomislav
  • Qi Hong
  • Rastgoo Saeed
  • Ricciardone Angelo
  • Rollo Rocco
  • Rubiera-Garcia Diego
  • Sergijenko Olga
  • Shapiro Stuart
  • Shoemaker Deirdre
  • Spallicci Alessandro
  • Stashko Oleksandr
  • Stein Leo C.
  • Tasinato Gianmassimo
  • Tolley Andrew J.
  • Vagenas Elias C.
  • Vandoren Stefan
  • Vernieri Daniele
  • Vicente Rodrigo
  • Wiseman Toby
  • Zhdanov Valery I.
  • Zumalacárregui Miguel
  Living Rev.Rel., 2022, 25 (1), pp.4. The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of gravitational waves can be expected to provide key input. We provide the briefest of reviews to then delineate avenues for future research directions and to discuss connections between this working group, other working groups and the consortium work package teams. These connections must be developed for LISA to live up to its science potential in these areas. (10.1007/s41114-022-00036-9)
  DOI : 10.1007/s41114-022-00036-9
• Record statistics for random walks and L\'evy flights with resetting
  
  • Majumdar Satya N.
  • Mounaix Philippe
  • Sabhapandit Sanjib
  • Schehr Gregory
  Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2022. We compute exactly the mean number of records $\langle R_N \rangle$ for a time-series of size $N$ whose entries represent the positions of a discrete time random walker on the line. At each time step, the walker jumps by a length $\eta$ drawn independently from a symmetric and continuous distribution $f(\eta)$ with probability $1-r$ (with $0\leq r < 1$) and with the complementary probability $r$ it resets to its starting point $x=0$. This is an exactly solvable example of a weakly correlated time-series that interpolates between a strongly correlated random walk series (for $r=0$) and an uncorrelated time-series (for $(1-r) \ll 1$). Remarkably, we found that for every fixed $r \in [0,1[$ and any $N$, the mean number of records $\langle R_N \rangle$ is completely universal, i.e., independent of the jump distribution $f(\eta)$. In particular, for large $N$, we show that $\langle R_N \rangle$ grows very slowly with increasing $N$ as $\langle R_N \rangle \approx (1/\sqrt{r})\, \ln N$ for $0<r <1$. We also computed the exact universal crossover scaling functions for $\langle R_N \rangle$ in the two limits $r \to 0$ and $r \to 1$. Our analytical predictions are in excellent agreement with numerical simulations. (10.1088/1751-8121/ac3fc1)
  DOI : 10.1088/1751-8121/ac3fc1
• Unraveling correlated material properties with noisy quantum computers: Natural orbitalized variational quantum eigensolving of extended impurity models within a slave-boson approach
  
  • Besserve Pauline
  • Ayral Thomas
  Physical Review B, American Physical Society, 2022, 105 (11), pp.115108. We propose a method for computing space-resolved correlation properties of the two-dimensional Hubbard model within a quantum-classical embedding strategy that uses a noisy, intermediate scale quantum (NISQ) computer to solve the embedded model. While previous approaches were limited to purely local, one-impurity embedded models, requiring at most four qubits and relatively shallow circuits, we solve a two-impurity model requiring eight qubits with an advanced hybrid scheme on top of the variational quantum eigensolver algorithm. This iterative scheme, dubbed natural orbitalization (NOization), gradually transforms the single-particle basis to the approximate natural-orbital basis, in which the ground state can be minimally expressed, at the cost of measuring the one-particle reduced density matrix of the embedded problem. We show that this transformation tends to make the variational optimization of existing (but too deep) Ansatz circuits faster and more accurate, and we propose an Ansatz, the multireference excitation-preserving (MREP) Ansatz, that achieves great expressivity without requiring a prohibitive gate count, thus bridging the gap between hardware-efficient and physically motivated strategies in variational Ansatz design. The one-impurity version of the Ansatz has only one parameter, making the ground-state preparation a trivial step, which supports the optimal character of our approach. Within a rotationally invariant slave boson embedding scheme that requires a minimal number of bath sites and does not require computing the full Green's function, the NOization combined with the MREP Ansatz allow us to compute accurate, space-resolved quasiparticle weights and static self-energies for the Hubbard model even in the presence of noise levels representative of current NISQ processors. This paves the way to a controlled solution of the Hubbard model with larger and larger embedded problems solved by quantum computers. (10.1103/PhysRevB.105.115108)
  DOI : 10.1103/PhysRevB.105.115108
• Polyakov loop, gluon mass, gluon condensate, and its asymmetry near deconfinement
  
  • Dudal D.
  • van Egmond D.M.
  • Reinosa U.
  • Vercauteren D.
  Physical Review D, American Physical Society, 2022, 106 (5), pp.054007. We consider a BRST-invariant generalization of the “massive background Landau gauge,” resembling the original Curci-Ferrari model that saw a revived interest due to its phenomenological success in modeling infrared Yang-Mills dynamics, including that of the phase transition. Unlike the Curci-Ferrari model, however, the mass parameter is no longer a phenomenological input, but it enters as a result of dimensional transmutation via a BRST-invariant dimension-2 gluon condensate. The associated renormalization constant is dealt with using Zimmermann’s reduction of constants program, which fixes the value of the mass parameter to values close to those obtained within the Curci-Ferrari approach. Using a self-consistent background field, we can include the Polyakov loop and probe the deconfinement transition, including its interplay with the condensate and its electric–magnetic asymmetry. We report a continuous phase transition at <math display="inline"><msub><mi>T</mi><mi>c</mi></msub><mo>≈</mo><mn>0.230</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> in the SU(2) case and a first-order one at <math display="inline"><msub><mi>T</mi><mi>c</mi></msub><mo>≈</mo><mn>0.164</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> in the SU(3) case, values which are again rather close to those obtained within the Curci-Ferrari model at one-loop order. (10.1103/PhysRevD.106.054007)
  DOI : 10.1103/PhysRevD.106.054007
• Equation-of-motion and Lorentz-invariance relations for tensor-polarized parton distribution functions of spin-1 hadrons
  
  • Kumano S.
  • Song Qin-Tao
  Physics Letters B, Elsevier, 2022, 826, pp.136908. Structure functions of polarized spin-1 hadrons will be measured at various accelerator facilities in the near future. Recently, transverse-momentum-dependent and collinear parton distribution functions were theoretically proposed at twist 3 and twist 4 in addition to the twist-2 ones, so that full investigations became possible for structure functions of spin-1 hadrons in the same level with those of the spin-1/2 nucleons. Furthermore, twist-3 tensor-polarized multiparton distribution functions were also recently found for spin-1 hadrons. In this work, we show relations among the collinear parton- and multiparton-distribution functions for spin-1 hadrons by using equation of motion for quarks. These relations are valuable in constraining the distribution functions and learning about multiparton correlations in spin-1 hadrons. (10.1016/j.physletb.2022.136908)
  DOI : 10.1016/j.physletb.2022.136908
• Equipartition of entanglement in quantum Hall states
  
  • Oblak Blagoje
  • Regnault Nicolas
  • Estienne Benoit
  Physical Review B, American Physical Society, 2022, 105 (11), pp.115131. We study the full counting statistics (FCS) and symmetry-resolved entanglement entropies of integer and fractional quantum Hall states. For the filled lowest Landau level of spin-polarized electrons on an infinite cylinder, we compute exactly the charged moments associated with a cut orthogonal to the cylinder's axis. This yields the behavior of FCS and entropies in the limit of large perimeters: in a suitable range of fluctuations, FCS is Gaussian and entanglement spreads evenly among different charge sectors. Subleading charge-dependent corrections to equipartition are also derived. We then extend the analysis to Laughlin wave functions, where entanglement spectroscopy is carried out assuming the Li-Haldane conjecture. The results confirm equipartition up to small charge-dependent terms, and are then matched with numerical computations based on exact matrix product states. (10.1103/PhysRevB.105.115131)
  DOI : 10.1103/PhysRevB.105.115131
• Topological superconductivity on the honeycomb lattice: Effect of normal state topology
  
  • Wolf Sebastian
  • Gardener Tyler
  • Le Hur Karyn
  • Rachel Stephan
  Physical Review B, American Physical Society, 2022, 105 (10), pp.L100505. The search for topological superconductors is one of the most pressing and challenging questions in condensed-matter and material research. Despite some early suggestions that doping a topological insulator might be a successful recipe to find topological superconductors, to date there is no general understanding of the relationship of the topology of the superconductor and the topology of its underlying normal state system. One of the major obstacles is the strong effect of the Fermi surface and its subsequent pairing tendencies within the Hubbard model framework, which usually prevents a detailed comparison between different topological superconducting systems. Here we present an analysis of doped insulators—topological and trivial—where the dominant Fermi surface effects have been equalized. Our approach allows us to study and compare superconducting instabilities of different normal state systems and present rigorous results about the influence of the normal state system's topology. (10.1103/PhysRevB.105.L100505)
  DOI : 10.1103/PhysRevB.105.L100505
• HiRISE - High-Resolution Imaging and Spectroscopy Explorer - Ultrahigh resolution, interferometric and external occulting coronagraphic science
  
  • Erdélyi Robertus
  • Damé Luc
  • Fludra Andrzej
  • Mathioudakis Mihalis
  • Amari T.
  • Belucz B.
  • Berrilli F.
  • Bogachev S.
  • Bolsée D.
  • Bothmer V.
  • Brun S.
  • Dewitte S.
  • Dudok de Wit Thierry
  • Faurobert M.
  • Gizon L.
  • Gyenge N.
  • Korsós M.
  • Labrosse N.
  • Matthews S.
  • Meftah Mustapha
  • Morgan H.
  • Pallé P.
  • Rochus P.
  • Rozanov E.
  • Schmieder B.
  • Tsinganos K.
  • Verwichte E.
  • Zharkov S.
  • Zuccarello F.
  • Wimmer-Schweingruber R.
  Experimental Astronomy, Springer Link, 2022, 54, pp.227-256. Recent solar physics missions have shown the definite role of waves and magnetic fields deep in the inner corona, at the chromosphere-corona interface, where dramatic and physically dominant changes occur. HiRISE (High Resolution Imaging and Spectroscopy Explorer), the ambitious new generation ultra-high resolution, interferometric, and coronagraphic, solar physics mission, proposed in response to the ESA Voyage 2050 Call, would address these issues and provide the best-ever and most complete solar observatory, capable of ultra-high spatial, spectral, and temporal resolution observations of the solar atmosphere, from the photosphere to the corona, and of new insights of the solar interior from the core to the photosphere. HiRISE, at the L1 Lagrangian point, would provide meter class FUV imaging and spectroimaging, EUV and XUV imaging and spectroscopy, magnetic fields measurements, and ambitious and comprehensive coronagraphy by a remote external occulter (two satellites formation flying 375 m apart, with a coronagraph on a chaser satellite). This major and state-of-the-art payload would allow us to characterize temperatures, densities, and velocities in the solar upper chromosphere, transition zone, and inner corona with, in particular, 2D very high resolution multi-spectral imaging-spectroscopy, and, direct coronal magnetic field measurement, thus providing a unique set of tools to understand the structure and onset of coronal heating. HiRISE's objectives are natural complements to the Parker Solar Probe and Solar Orbiter-type missions. We present the science case for HiRISE which will address: i) the fine structure of the chromosphere-corona interface by 2D spectroscopy in FUV at very high resolution; ii) coronal heating roots in the inner corona by ambitious externally-occulted coronagraphy; iii) resolved and global helioseismology thanks to continuity and stability of observing at the L1 Lagrange point; and iv) solar variability and space climate with, in addition, a global comprehensive view of UV variability. (10.1007/s10686-022-09831-2)
  DOI : 10.1007/s10686-022-09831-2