Weak field collapse in AdS: introducing a charge density

Elena Caceres, Arnab Kundu, Juan F. Pedraza, Di Lun Yang

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Abstract: We study the effect of a non-vanishing chemical potential on the thermalization time of a strongly coupled large Nc 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.

Original languageEnglish
Article number111
JournalJournal of High Energy Physics
Issue number6
Publication statusPublished - 2015 Jun 26
Externally publishedYes


  • AdS-CFT Correspondence
  • Gauge-gravity correspondence
  • Holography and quark-gluon plasmas
  • Quark-Gluon Plasma

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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