dc.contributor.author | Casalderrey-Solana, Jorge | |
dc.contributor.author | Starinets, Andrei O. | |
dc.contributor.author | Grozdanov, Saso | |
dc.date.accessioned | 2018-11-14T18:13:49Z | |
dc.date.available | 2018-11-14T18:13:49Z | |
dc.date.issued | 2018-11 | |
dc.date.submitted | 2018-08 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/119008 | |
dc.description.abstract | We study the structure of thermal spectral function of the stress-energy tensor in N = 4 supersymmetric Yang-Mills theory at intermediate ‘t Hooft coupling and infinite number of colors. In gauge-string duality, this analysis reduces to the study of classical bulk supergravity with higher-derivative corrections, which correspond to (inverse) coupling corrections on the gauge theory side. We extrapolate the analysis of perturbative leading-order corrections to intermediate coupling by nonperturbatively solving the equations of motion of metric fluctuations dual to the stress-energy tensor at zero spatial momentum. We observe the emergence of a separation of scales in the analytic structure of the thermal correlator associated with two types of characteristic relaxation modes. As a consequence of this separation, the associated spectral function exhibits a narrow structure in the small frequency region which controls the dynamics of transport in the theory and may be described as a transport peak typically found in perturbative, weakly interacting thermal field theories. We compare our results with generic expectations drawn from perturbation theory, where such a structure emerges as a consequence of the existence of quasiparticles. | en_US |
dc.description.sponsorship | United States. Department of Energy (Contract DE-SC0011090) | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevLett.121.191603 | en_US |
dc.rights | Creative Commons Attribution | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0 | en_US |
dc.source | American Physical Society | en_US |
dc.title | Transport Peak in the Thermal Spectral Function of N = 4 Supersymmetric Yang-Mills Plasma at Intermediate Coupling | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Casalderrey-Solana, Jorge et al. "Transport Peak in the Thermal Spectral Function of N = 4 Supersymmetric Yang-Mills Plasma at Intermediate Coupling." Physical Review Letters 121, 19 (November 2018): 191603 | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Center for Theoretical Physics | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering | en_US |
dc.contributor.mitauthor | Grozdanov, Saso | |
dc.relation.journal | Physical Review Letters | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2018-11-09T18:00:25Z | |
dc.language.rfc3066 | en | |
dspace.orderedauthors | Casalderrey-Solana, Jorge; Grozdanov, Sašo; Starinets, Andrei O. | en_US |
dspace.embargo.terms | N | en_US |
mit.license | PUBLISHER_CC | en_US |