Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Tissier, Matthieu"'
We revisit the nonabelian dipole problem in the context of a simple semiclassical approach which incorporates some essential features of the infrared sector of Yang-Mills theories in the Landau gauge, in particular, the fact that the running coupling
Externí odkaz:
http://arxiv.org/abs/2405.20532
It is expected that conformal symmetry is an emergent property of many systems at their critical point. This imposes strong constraints on the critical behavior of a given system. Taking them into account in theoretical approaches can lead to a bette
Externí odkaz:
http://arxiv.org/abs/2401.02517
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:
http://arxiv.org/abs/2202.11109
Lattice simulations of the QCD correlation functions in the Landau gauge have established two remarkable facts. First, the coupling constant in the gauge sector remains finite and moderate at all scales, suggesting that some kind of perturbative desc
Externí odkaz:
http://arxiv.org/abs/2106.04526
Publikováno v:
SciPost Phys. 12, 087 (2022)
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
Externí odkaz:
http://arxiv.org/abs/2104.08974
Publikováno v:
Phys. Rev. D 103, 094035 (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:
http://arxiv.org/abs/2010.13689
Publikováno v:
Phys. Rev. E 102, 062154 (2020)
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 $d_{DR}\approx 5.1$ that sepa
Externí odkaz:
http://arxiv.org/abs/2008.13650
Publikováno v:
SciPost Phys. 10, 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 form
Externí odkaz:
http://arxiv.org/abs/2004.12413
Publikováno v:
Phys. Rev. E 101, 062146 (2020)
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:
http://arxiv.org/abs/2004.02521
Publikováno v:
Phys. Rev. E 101, 042113 (2020)
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:
http://arxiv.org/abs/2001.07525