Výsledky vyhledávání - "Matthieu Tissier"

Akademický článek

Gribov copies, avalanches and dynamic generation of a gluon mass

Autor: Matthieu Tissier

Publikováno v: Physics Letters B, Vol 784, Iss , Pp 146-150 (2018)

Analytic calculations in the infrared regime of nonabelian gauge theories are hampered by the presence of Gribov copies which results in some ambiguity in the gauge-fixing procedure. This problem shares strong similarities with the issue of finding t

Externí odkaz: https://doaj.org/article/53a2dce357d64ef5ac396f4c6c373060

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Akademický článek

Symmetry restoration and the gluon mass in the Landau gauge

Autor: Urko Reinosa, Julien Serreau, Rodrigo Carmo Terin, Matthieu Tissier

Publikováno v: SciPost Physics, Vol 10, Iss 2, p 035 (2021)

We investigate the generation of a gluon screening mass in Yang-Mills theory in the Landau gauge. We propose a gauge-fixing procedure where the Gribov ambiguity is overcome by summing over all Gribov copies with some weight function. This can be f

Externí odkaz: https://doaj.org/article/ed3e1457dad14aa5816e2fcf06713a8f

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Dense polar active fluids in a disordered environment

Autor: Riccardo Ben Alì Zinati, Marc Besse, Gilles Tarjus, Matthieu Tissier

We examine the influence of quenched disorder on the flocking transition of dense polar active matter. We consider incompressible systems of active particles with aligning interactions under the effect of either quenched random forces or random dilut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::426b46bbca9d7de7dd62a13ca8d48a52

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Spontaneous chiral symmetry breaking in the massive Landau gauge: Realistic running coupling

Autor: Julien Serreau, Nicolás Wschebor, Marcela Peláez, Urko Reinosa, Matthieu Tissier

Publikováno v: Physical Review
Light Cone 2019-QCD on the light cone: from hadrons to heavy ions
Light Cone 2019-QCD on the light cone: from hadrons to heavy ions, Sep 2019, Ecole Polytechnique, France. pp.074, ⟨10.22323/1.374.0074⟩
Physical Review D
Physical Review D, American Physical Society, 2021

We investigate the spontaneous breaking of chiral symmetry in QCD by means of a recently proposed approximation scheme in the Landau-gauge Curci-Ferrari model, which combines an expansion in the Yang-Mills coupling and in the inverse number of colors

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d517ee73c2597ad065c9e1594f83ca71
http://repo.scoap3.org/api

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A novel background field approach to the confinement-deconfinement transition

Autor: Duifje Maria van Egmond, Urko Reinosa, Julien Serreau, Matthieu Tissier

Publikováno v: SciPost Physics
SciPost Physics, 2022, 12 (3), pp.087. ⟨10.21468/SciPostPhys.12.3.087⟩

We propose a novel approach to the confinement-deconfinement transition in Yang-Mills theories in the context of gauge-fixed calculations. The method is based on a background-field generalisation of the Landau gauge (to which it reduces at vanishing

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The nonperturbative functional renormalization group and its applications

Autor: Léonie Canet, Matthieu Tissier, N. Dupuis, Nicolás Wschebor, Jan M. Pawlowski, W. Metzner, Astrid Eichhorn

Publikováno v: Dupuis, N, Canet, L, Eichhorn, A, Metzner, W, Pawlowski, J M, Tissier, M & Wschebor, N 2021, ' The nonperturbative functional renormalization group and its applications ', Physics Reports, vol. 910, pp. 1-114 . https://doi.org/10.1016/j.physrep.2021.01.001
Phys.Rept.
Phys.Rept., 2021, 910, pp.1-114. ⟨10.1016/j.physrep.2021.01.001⟩

The renormalization group plays an essential role in many areas of physics, both conceptually and as a practical tool to determine the long-distance low-energy properties of many systems on the one hand and on the other hand search for viable ultravi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0fd055e82a1a1831aabcb7a2d9634f8
http://arxiv.org/abs/2006.04853

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Conformal invariance in the nonperturbative renormalization group: a rationale for choosing the regulator

Autor: Nicolás Wschebor, Matthieu Tissier, Ivan Balog, Gonzalo De Polsi

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2020, 101 (6), pp.062146. ⟨10.1103/PhysRevE.101.062146⟩

Field-theoretical calculations performed in an approximation scheme often present a spurious dependence of physical quantities on some unphysical parameters associated with the details of the calculation setup (such as, the renormalization scheme or,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09ff3924244b701afef0d9a358c88d2a

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Random-field Ising and $O(N)$ models: Theoretical description through the functional renormalization group

Autor: Matthieu Tissier, Gilles Tarjus

Publikováno v: The European Physical Journal B: Condensed Matter and Complex Systems
The European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2020, 93 (3), pp.50. ⟨10.1140/epjb/e2020-100489-1⟩
Eur.Phys.J.B
Eur.Phys.J.B, 2020, 93 (3), pp.50. ⟨10.1140/epjb/e2020-100489-1⟩
European Physical Journal B: Condensed Matter and Complex Systems
European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2020, 93 (3), ⟨10.1140/epjb/e2020-100489-1⟩

We review the theoretical description of the random field Ising and $O(N)$ models obtained from the functional renormalization group, either in its nonperturbative implementation or, in some limits, in perturbative implementations. The approach solve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3070093feff61e5043f3721f4ab43fb3
https://hal.archives-ouvertes.fr/hal-02423745

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Precision calculation of critical exponents in the $O(N)$ universality classes with the nonperturbative renormalization group

Autor: Gonzalo De Polsi, Matthieu Tissier, Nicolás Wschebor, Ivan Balog

We compute the critical exponents $\nu$, $\eta$ and $\omega$ of $O(N)$ models for various values of $N$ by implementing the derivative expansion of the nonperturbative renormalization group up to next-to-next-to-leading order [usually denoted $\mathc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68e5ed9be1dd40f73eefc1834c4e30ad
https://hal.archives-ouvertes.fr/hal-02475288

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Dimensional reduction breakdown and correction to scaling in the random-field Ising model

Autor: Matthieu Tissier, Gilles Tarjus, Ivan Balog

Publikováno v: Phys.Rev.E
Phys.Rev.E, 2020, 102, pp.062154. ⟨10.1103/PhysRevE.102.062154⟩

We provide a theoretical analysis by means of the nonperturbative functional renormalization group (NP-FRG) of the corrections to scaling in the critical behavior of the random-field Ising model (RFIM) near the dimension ${d}_{\mathrm{DR}}\ensuremath

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89729f1d0bcecd6f97052dce215da1b4
https://hal.archives-ouvertes.fr/hal-02946245

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