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Gao, X; Garcia-Garcia, AM; Zeng, HB; Zhang, HQ; Gao, X (reprint author), Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, Fohringer Ring 6, D-80805 Munich, Germany.
Normal modes and time evolution of a holographic superconductor after a quantum quench
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
AbstractWe employ holographic techniques to investigate the dynamics of the order parameter of a strongly coupled superconductor after a perturbation that drives the system out of equilibrium. The gravity dual that we employ is the AdS(5) Soliton background at zero temperature. We first analyze the normal modes associated to the superconducting order parameter which are purely real since the background has no horizon. We then study the full time evolution of the order parameter after a quench. For sufficiently a weak and slow perturbation we show that the order parameter undergoes simple undamped oscillations in time with a frequency that agrees with the lowest normal model computed previously. This is expected as the soliton background has no horizon and therefore, at least in the probe and large N limits considered, the system will never return to equilibrium. For stronger and more abrupt perturbations higher normal modes are excited and the pattern of oscillations becomes increasingly intricate. We identify a range of parameters for which the time evolution of the order parameter become quasi chaotic. The details of the chaotic evolution depend on the type of perturbation used. Therefore it is plausible to expect that it is possible to engineer a perturbation that leads to the almost complete destruction of the oscillating pattern and consequently to quasi equilibration induced by superposition of modes with different frequencies.
2014
ISSN1029-8479
Issue6Pages:19
Subject AreaPhysics
DOI10.1007/JHEP06(2014)019
Indexed BySCI
Funding OrganizationEPSRC [EP/I004637/1]; FCT [PTDC/FIS/111348/2009]; Marie Curie International Reintegration [PIRG07-GA-2010-268172]; MPG-CAS Joint Doctoral Promotion Programme; National Natural Science Foundation of China [11205020] ; EPSRC [EP/I004637/1]; FCT [PTDC/FIS/111348/2009]; Marie Curie International Reintegration [PIRG07-GA-2010-268172]; MPG-CAS Joint Doctoral Promotion Programme; National Natural Science Foundation of China [11205020] ; EPSRC [EP/I004637/1]; FCT [PTDC/FIS/111348/2009]; Marie Curie International Reintegration [PIRG07-GA-2010-268172]; MPG-CAS Joint Doctoral Promotion Programme; National Natural Science Foundation of China [11205020] ; EPSRC [EP/I004637/1]; FCT [PTDC/FIS/111348/2009]; Marie Curie International Reintegration [PIRG07-GA-2010-268172]; MPG-CAS Joint Doctoral Promotion Programme; National Natural Science Foundation of China [11205020]
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15738
Collection理论物理所科研产出_SCI论文
Corresponding AuthorGao, X (reprint author), Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, Fohringer Ring 6, D-80805 Munich, Germany.
Recommended Citation
GB/T 7714
Gao, X,Garcia-Garcia, AM,Zeng, HB,et al. Normal modes and time evolution of a holographic superconductor after a quantum quench[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(6):19.
APA Gao, X,Garcia-Garcia, AM,Zeng, HB,Zhang, HQ,&Gao, X .(2014).Normal modes and time evolution of a holographic superconductor after a quantum quench.JOURNAL OF HIGH ENERGY PHYSICS(6),19.
MLA Gao, X,et al."Normal modes and time evolution of a holographic superconductor after a quantum quench".JOURNAL OF HIGH ENERGY PHYSICS .6(2014):19.
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