Resummation of infrared divergences in the free energy of spin-two fields


Autoria(s): Brandt, Fernando Tadeu Caldeira; Frenkel, Josif; MCKEON, D. G. C.; Siqueira, João Bosco de
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/04/2012

18/04/2012

2009

Resumo

We derive a closed form expression for the sum of all the infrared divergent contributions to the free energy of a gas of gravitons. An important ingredient of our calculation is the use of a gauge fixing procedure such that the graviton propagator becomes both traceless and transverse. This has been shown to be possible, in a previous work, using a general gauge fixing procedure, in the context of the lowest order expansion of the Einstein-Hilbert action, describing noninteracting spin-two fields. In order to encompass the problems involving thermal loops, such as the resummation of the free energy, in the present work, we have extended this procedure to the situations when the interactions are taken into account.

Identificador

PHYSICAL REVIEW D, v.80, n.2, 2009

1550-7998

http://producao.usp.br/handle/BDPI/16019

10.1103/PhysRevD.80.025024

http://dx.doi.org/10.1103/PhysRevD.80.025024

Idioma(s)

eng

Publicador

AMER PHYSICAL SOC

Relação

Physical Review D

Direitos

restrictedAccess

Copyright AMER PHYSICAL SOC

Palavras-Chave #QUANTUM-GRAVITY #SUPERGRAVITY #Astronomy & Astrophysics #Physics, Particles & Fields
Tipo

article

original article

publishedVersion