Vortex in holographic two-band superfluid/superconductor

Wu, Musheng; Wu, Shang-Yu; Zhang, Hai-Qing

doi:10.1007/jhep05(2016)011

Cited by 11 publications

(1 citation statement)

References 62 publications

(84 reference statements)

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“…Recently, the technique of realizing various phase transition order parameters in holographic superconductor models have been applied to the study the competition and coexistence of multiple order parameters [10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34]. The authors of ref.…”

Section: Introductionmentioning

confidence: 99%

Competing s-wave orders from Einstein–Gauss–Bonnet gravity

Nie

2018

Physics Letters B

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In this paper, the holographic superconductor model with two s-wave orders from 4+1 dimensional Einstein-Gauss-Bonnet gravity is explored in the probe limit. At different values of the Gauss-Bonnet coefficient α, we study the influence of tuning the mass and charge parameters of the bulk scalar field on the free energy curve of condensed solution with signal s-wave order, and compare the difference of tuning the two different parameters while the changes of the critical temperature are the same. Based on the above results, it is indicated that the two free energy curves of different s-wave orders can have one or two intersection points, where two typical phase transition behaviors of the s+s coexistent phase, including the reentrant phase transition near the Chern-Simons limit α = 0.25, can be found. We also give an explanation to the nontrivial behavior of the T c − α curves near the Chern-Simons limit, which might be heuristic to understand the origin of the reentrant behavior near the Chern-Simons limit.

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Section: Introductionmentioning

confidence: 99%

Competing s-wave orders from Einstein–Gauss–Bonnet gravity

Nie

2018

Physics Letters B

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Baby skyrmion in two-component holographic superfluids

Yao,

Tian,

Yang

et al. 2023

J. High Energ. Phys.

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In the two-component Ginzburg-Landau theory of superfluidity, a pair of fractional vortices form a composite type of topological defect, usually referred to as a baby skyrmion. In this paper, we initiate the construction of such a baby skyrmion in the holographic model of two-component superfluids. As a result, two types of baby skyrmion configurations are found, where the monopole-type of one is constructed directly by solving the static equations of motion while the dipole-type of one is obtained by resorting to the time evolution method. In addition, we find that the existence of these two types of baby skyrmion depends on the inter-component coupling, reminiscent of the situation in the baby skyrmion model.

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