Vortex in holographic two-band superfluid/superconductor

A bstract We construct numerically static vortex solutions in a holographic model of two-band superconductor with an interband Josephson coupling in both the superfluid and superconductor regime. We investigate the effects of the interband coupling on the order parameter of each superconducting band...

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Bibliographic Details
Published in:The journal of high energy physics 2016-05, Vol.2016 (5), p.1-17, Article 11
Main Authors: Wu, Mu-Sheng, Wu, Shang-Yu, Zhang, Hai-Qing
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Coherence
Coupling
Elementary Particles
Fluid flow
Fluids
High energy physics
Mathematical models
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Superconductors
Superfluidity
Vortices
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Summary:A bstract We construct numerically static vortex solutions in a holographic model of two-band superconductor with an interband Josephson coupling in both the superfluid and superconductor regime. We investigate the effects of the interband coupling on the order parameter of each superconducting band in the vortex solution, and we find that it is different for each of the two bands. We compute also the free energy, critical magnetic field, magnetic penetration length and coherence lengths for the two bands, and we study their dependence on the interband coupling and temperature. Interestingly, we find that the coherence lengths of the two bands are close to identical.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP05(2016)011