Dynamical stability of the Holographic System with Two Competing Orders

Yiqiang Du, Shan-Quan Lan, Yu Tian, Hongbao Zhang

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We investigate the dynamical stability of the holographic system with two order parameters, which exhibits competition and coexistence of condensations. In the linear regime, we have developed the gauge dependent formalism to calculate the quasi-normal modes by gauge fixing, which turns out be considerably convenient. Furthermore, by giving different Gaussian wave packets as perturbations at the initial time, we numerically evolve the full nonlinear system until it arrives at the final equilibrium state. Our results show that the dynamical stability is consistent with the thermodynamical stability. Interestingly, the dynamical evolution, as well as the quasi-normal modes, shows that the relaxation time of this model is generically much longer than the simplest holographic system. We also find that the late time behavior can be well captured by the lowest lying quasi-normal modes except for the non-vanishing order towards the single ordered phase. To our knowledge, this exception is the first counter example to the general belief that the late time behavior towards a final stable state can be captured by the lowest lying quasi-normal modes. In particular, a double relation is found for this exception in certain cases.
Original languageEnglish
Article number016
Pages (from-to)1-18
Number of pages18
JournalThe Journal of high energy physics
Volume2016
Issue number01
DOIs
Publication statusPublished - 4 Jan 2016

Bibliographical note

19 pages, 15 figures; v2: minor corrections

Keywords

  • gauge-gravity correspondance
  • AdS-CFT correspondance
  • Black holes

Fingerprint

Dive into the research topics of 'Dynamical stability of the Holographic System with Two Competing Orders'. Together they form a unique fingerprint.

Cite this