The pressure of QED from the two-loop 2PI effective action

Sz Borsányi; U. Reinosa

doi:10.1016/j.physletb.2008.02.011

The pressure of QED from the two-loop 2PI effective action

Sz Borsányi
, U. Reinosa

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

We compute the pressure of hot quantum electrodynamics from the two-loop truncation of the 2PI effective action. Since the 2PI resummation guarantees gauge-fixing independence only up to the order of the truncation, our result for the pressure presents a gauge-dependent contribution of O (e⁴). We numerically characterize the credibility of this gauge-dependent calculation and find that the uncertainty due to gauge parameter dependence is under control for ξ ≲ 1. Our calculation also suggests that the choice of Landau gauge may minimize gauge-dependent effects.

langue originale	Anglais
Pages (de - à)	88-94
Nombre de pages	7
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	661
Numéro de publication	2-3
Les DOIs	https://doi.org/10.1016/j.physletb.2008.02.011
état	Publié - 20 mars 2008
Modification externe	Oui

Accès au document

10.1016/j.physletb.2008.02.011

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{a9729dd35be5419289e1e80fd53db868,

title = "The pressure of QED from the two-loop 2PI effective action",

abstract = "We compute the pressure of hot quantum electrodynamics from the two-loop truncation of the 2PI effective action. Since the 2PI resummation guarantees gauge-fixing independence only up to the order of the truncation, our result for the pressure presents a gauge-dependent contribution of O (e4). We numerically characterize the credibility of this gauge-dependent calculation and find that the uncertainty due to gauge parameter dependence is under control for ξ ≲ 1. Our calculation also suggests that the choice of Landau gauge may minimize gauge-dependent effects.",

author = "Sz Bors{\'a}nyi and U. Reinosa",

year = "2008",

month = mar,

day = "20",

doi = "10.1016/j.physletb.2008.02.011",

language = "English",

volume = "661",

pages = "88--94",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "2-3",

}

TY - JOUR

T1 - The pressure of QED from the two-loop 2PI effective action

AU - Borsányi, Sz

AU - Reinosa, U.

PY - 2008/3/20

Y1 - 2008/3/20

N2 - We compute the pressure of hot quantum electrodynamics from the two-loop truncation of the 2PI effective action. Since the 2PI resummation guarantees gauge-fixing independence only up to the order of the truncation, our result for the pressure presents a gauge-dependent contribution of O (e4). We numerically characterize the credibility of this gauge-dependent calculation and find that the uncertainty due to gauge parameter dependence is under control for ξ ≲ 1. Our calculation also suggests that the choice of Landau gauge may minimize gauge-dependent effects.

AB - We compute the pressure of hot quantum electrodynamics from the two-loop truncation of the 2PI effective action. Since the 2PI resummation guarantees gauge-fixing independence only up to the order of the truncation, our result for the pressure presents a gauge-dependent contribution of O (e4). We numerically characterize the credibility of this gauge-dependent calculation and find that the uncertainty due to gauge parameter dependence is under control for ξ ≲ 1. Our calculation also suggests that the choice of Landau gauge may minimize gauge-dependent effects.

UR - https://www.scopus.com/pages/publications/39949085754

U2 - 10.1016/j.physletb.2008.02.011

DO - 10.1016/j.physletb.2008.02.011

M3 - Article

AN - SCOPUS:39949085754

SN - 0370-2693

VL - 661

SP - 88

EP - 94

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2-3

ER -

The pressure of QED from the two-loop 2PI effective action

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Contient cette citation