Metallic AdS/CFT
| dc.creator | Karch, Andreas | |
| dc.creator | O'Bannon, Andy | |
| dc.date | 2007-05-26 | |
| dc.date | 2007-09-10 | |
| dc.date.accessioned | 2026-07-07T13:04:23Z | |
| dc.date.available | 2026-07-07T13:04:23Z | |
| dc.description | We use the AdS/CFT correspondence to compute the conductivity of massive N=2 hypermultiplet fields at finite baryon number density in an N=4 SU(N_c) super-Yang-Mills theory plasma in the large N_c, large 't Hooft coupling limit. The finite baryon density provides charge carriers analogous to electrons in a metal. An external electric field then induces a finite current which we determine directly. Our result for the conductivity is good for all values of the mass, external field and density, modulo statements about the yet-incomplete phase diagram. In the appropriate limits it agrees with known results obtained from analyzing small fluctuations around equilibrium. For large mass, where we expect a good quasi-particle description, we compute the drag force on the charge carriers and find that the answer is unchanged from the zero density case. Our method easily generalizes to a wide class of systems of probe branes in various backgrounds. | |
| dc.description | 19 pages, no figures; v2 added two references, clarified discussion in section 3 | |
| dc.identifier | https://arxiv.org/abs/0705.3870 | |
| dc.identifier | http://arxiv.org/abs/0705.3870 | |
| dc.identifier | JHEP 0709:024,2007 | |
| dc.identifier | doi:10.1088/1126-6708/2007/09/024 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227145 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Metallic AdS/CFT | |
| dc.type | text |