Weak Field Collapse in AdS: Introducing a Charge Density

Nov 6, 2014
49 pages
Published in:
  • JHEP 06 (2015) 111
  • Published: Jun 17, 2015
e-Print:
Report number:
  • UTTG-22-14,
  • TCC-024-14,
  • CCTP-2014-24,
  • CCQCN-2014-49

Citations per year

2014201620182020202202468101214
Abstract: (Springer)
We study the effect of a non-vanishing chemical potential on the thermalization time of a strongly coupled large Nc_{c} gauge theory in (2 + 1)-dimensions, using a specific bottom-up gravity model in asymptotically AdS space. We first construct a perturbative solution to the gravity-equations, which dynamically interpolates between two AdS black hole backgrounds with different temperatures and chemical potentials, in a perturbative expansion of a bulk neutral scalar field. In the dual field theory, this corresponds to a quench dynamics by a marginal operator, where the corresponding coupling serves as the small parameter in which the perturbation is carried out. The evolution of non-local observables, such as the entanglement entropy, suggests that thermalization time decreases with increasing chemical potential. We also comment on the validity of our perturbative analysis.
Note:
  • 1+48 pages, multiple figures, published in JHEP
  • Quark-Gluon Plasma
  • Gauge-gravity correspondence
  • AdS-CFT Correspondence
  • Holography and quark-gluon plasmas
  • potential: chemical
  • holography
  • charge: density
  • expansion 1/N: color
  • field theory: scalar
  • strong coupling