2012/09/14 by Babiker Hassanain, Martín Schvellinger, Martin Schvellinger
Physics and Astronomy · #Angle-resolved photoemission spectroscopy #Atomic physics #Black Holes and Theoretical Physics #Electronic structure #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Physics #Plasma #Quantum mechanics #String (physics) #String theory #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep12(2012)095
36 pages, 5 figures, paragraph added in the conclusions, references added, typos corrected
arxiv created 2012/09/14 · openalex publication_date 2012/12/01 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 α'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.