Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Loewe, Marcelo"'
In this work, we study the effects of random temperature fluctuations on the equation of state of a non-interacting, relativistic fermion gas by means of the replica method. This picture provides a conceptual model for a non-equilibrium system, depic
Externí odkaz:
http://arxiv.org/abs/2401.00361
We consider the effects of a noisy magnetic field background over the fermion propagator in QED, as an approximation to the spatial inhomogeneities and time-fluctuations that would naturally arise in certain physical scenarios, such as heavy-ion coll
Externí odkaz:
http://arxiv.org/abs/2308.12249
Publikováno v:
Phys. Rev. D 109, 034014 (2024)
Weak magnetic field induced corrections for the Yukawa potential due to one pion exchange between two constituent quarks (nucleons) are presented. For that, the constant magnetic field effect on the pion propagator and on the pion form factor are tak
Externí odkaz:
http://arxiv.org/abs/2308.12122
Publikováno v:
Phys. Rev. D 108 (2023) 074024
The nucleon axial-vector coupling constant $g_A$ is studied in the presence of an external magnetic field, and in dense nuclear environments, to emulate nuclear matter in magnetars. For this purpose we use QCD finite energy sum rules for two-current
Externí odkaz:
http://arxiv.org/abs/2308.05663
We consider the effects of a noisy magnetic field background over the fermion propagator in QED, as an approximation to the spatial inhomogeneities that would naturally arise in certain physical scenarios, such as heavy-ion collisions or the quark-gl
Externí odkaz:
http://arxiv.org/abs/2211.16985
We review the main features of the QCD phase diagram description, at finite temperature, baryon density and in the presence of a magnetic field, from the point of view of effective models, whose main ingredient is chiral symmetry. We concentrate our
Externí odkaz:
http://arxiv.org/abs/2104.05854
Publikováno v:
Phys. Rev. B 103, 235431 (2021)
We studied theoretically the effect of a low concentration of adsorbed polar molecules on the optical conductivity of graphene, within the Kubo linear response approximation. Our analysis is based on a continuum model approximation that includes up t
Externí odkaz:
http://arxiv.org/abs/2103.09618
Publikováno v:
Phys. Rev. D 102, 094007 (2020)
Finite energy QCD sum rules involving nucleon current correlators are used to determine several QCD and hadronic parameters in the presence of an external, uniform, large magnetic field. The continuum hadronic threshold $s_0$, nucleon mass $m_N$, cur
Externí odkaz:
http://arxiv.org/abs/2008.10742
In this article, we investigate the temperature and chemical potential dependence of the optical conductivity of graphene, within a field theoretical representation in the continuum approximation, arising from an underlying tight-binding atomistic mo
Externí odkaz:
http://arxiv.org/abs/1907.02017
Publikováno v:
Phys. Rev. D 100, 116006 (2019)
In this article, we extend our previous study of the $\pi$-$\pi$ scattering lengths under the presence of an external magnetic field, including finite temperature effects. The novelty of this work is precisely the introduction of temperature into the
Externí odkaz:
http://arxiv.org/abs/1905.03783