Inhomogeneous Structures in Holographic Superfluids I : Dark Solitons

Show full item record



Permalink

http://hdl.handle.net/10138/24389

Citation

Keränen , V , Keski-Vakkuri , E , Nowling , S & P. Yogendran , K 2010 , ' Inhomogeneous Structures in Holographic Superfluids I : Dark Solitons ' , Physical Review D : Particles, Fields, Gravitation and Cosmology , vol. 81 , no. 12 , pp. 126011 . https://doi.org/10.1103/PhysRevD.81.126011

Title: Inhomogeneous Structures in Holographic Superfluids I : Dark Solitons
Author: Keränen, Ville; Keski-Vakkuri, Esko; Nowling, Sean; P. Yogendran, K.
Contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2010
Language: eng
Number of pages: 12
Belongs to series: Physical Review D : Particles, Fields, Gravitation and Cosmology
ISSN: 1550-7998
URI: http://hdl.handle.net/10138/24389
Abstract: We begin an investigation of inhomogeneous structures in holographic superfluids. As a first example, we study domain wall like defects in the 3+1 dimensional Einstein-Maxwell-Higgs theory, which was developed as a dual model for a holographic superconductor. In [1], we reported on such "dark solitons" in holographic superfluids. In this work, we present an extensive numerical study of their properties, working in the probe limit. We construct dark solitons for two possible condensing operators, and find that both of them share common features with their standard superfluid counterparts. However, both are characterized by two distinct coherence length scales (one for order parameter, one for charge condensate). We study the relative charge depletion factor and find that solitons in the two different condensates have very distinct depletion characteristics. We also study quasiparticle excitations above the holographic superfluid, and find that the scale of the excitations is comparable to the soliton coherence length scales.
Subject: hep-th
cond-mat.quant-gas
114 Physical sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
0911.1866v1 454.9Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record