IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Plasma photoemission from string theory
Autor/es:
BABIKER HASSANAIN, MARTIN SCHVELLINGER
Revista:
JOURNAL OF HIGH ENERGY PHYSICS - (Online)
Editorial:
SPRINGER
Referencias:
Lugar: Trieste; Año: 2012 vol. 12 p. 1 - 36
ISSN:
1029-8479
Resumen:
Abstract: Leading ´t Hooft coupling corrections to the photoemission rate of the planar limit of a strongly-coupled {cal {N}}=4 SYM plasma are investigated using the gauge/string duality. We consider the full order alpha´^3 type IIB string theory corrections to the supergravity action, including higher order terms with the Ramond-Ramond five-form field strength. We extend our previous results presented in arXiv:1110.0526. Photoemission rates depend on the ´t Hooft coupling, and their curves suggest an interpolating behaviour from strong towards weak coupling regimes. Their slopes at zero light-like momentum give the electrical conductivity as a function of the ´t Hooft coupling, in full agreement with our previous results of arXiv:1108.6306. Furthermore, we also study the effect of corrections beyond the large N limit.