Baryonic Response of Dense Holographic QCD
| dc.creator | Kim, Keun-Young | |
| dc.creator | Zahed, Ismail | |
| dc.date | 2008-11-03 | |
| dc.date | 2008-12-15 | |
| dc.date.accessioned | 2026-07-07T12:39:12Z | |
| dc.date.available | 2026-07-07T12:39:12Z | |
| dc.description | The response function of a homogeneous and dense hadronic system to a time-dependent (baryon) vector potential is discussed for holographic dense QCD (D4/D8 embedding) both in the confined and deconfined phases. Confined holographic QCD is an uncompressible and static baryonic insulator at large N_c and large λ, with a gapped vector spectrum and a massless pion. Deconfined holographic QCD is a diffusive conductor with restored chiral symmetry and a gapped transverse baryonic current. Similarly, dense D3/D7 is diffusive for any non-zero temperature at large N_c and large λ. At zero temperature dense D3/D7 exhibits a baryonic longitudinal visco-elastic mode with a first sound speed λ/\sqrt{3} and a small width due to a shear viscosity to baryon ratio η/n_B=\hbar/4. This mode is turned diffusive by arbitrarily small temperatures, a hallmark of holography. | |
| dc.description | V2: 47 pages, 7 figures, references added, typos corrected | |
| dc.identifier | https://arxiv.org/abs/0811.0184 | |
| dc.identifier | http://arxiv.org/abs/0811.0184 | |
| dc.identifier | JHEP 0812:075,2008 | |
| dc.identifier | doi:10.1088/1126-6708/2008/12/075 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/219028 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Baryonic Response of Dense Holographic QCD | |
| dc.type | text |