全息超导体的双重金兹堡-朗道理论：有限耦合修正

IF 5.4 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2024-11-19 DOI:10.1007/JHEP11(2024)107

Makoto Natsuume

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引用次数: 0

摘要

全息超导体是超导体的全息对偶。我们最近确定了一类体5维全息超导体的金兹堡-朗道（GL）对偶理论（arXiv:2207.07182 [hep-th]）。然而，该结果是强耦合极限或大 Nc 极限。一个自然的问题是，在有限耦合时，对偶 GL 理论是如何变化的。我们确定了有限耦合下最小全息超导体（高斯-波内特全息超导体）的对偶 GL 理论，并精确地得到了数值系数。在有限耦合条件下，GL 参数κ增大，即系统更接近于类似 II 类超导体的材料。我们还指出了之前工作中的两个潜在问题：（1）"天真 "的 AdS/CFT 字典；（2）仅由 GL 势项确定的凝聚态。因此，与一般传说不同的是，凝聚态在有限耦合时会增加。

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The dual Ginzburg-Landau theory for a holographic superconductor: finite coupling corrections

The holographic superconductor is the holographic dual of superconductors. We recently identified the dual Ginzburg-Landau (GL) theory for a class of bulk 5-dimensional holographic superconductors (arXiv:2207.07182 [hep-th]). However, the result is the strong coupling limit or the large-N_c limit. A natural question is how the dual GL theory changes at finite coupling. We identify the dual GL theory for a minimal holographic superconductor at finite coupling (Gauss-Bonnet holographic superconductor), where numerical coefficients are obtained exactly. The GL parameter κ increases at finite coupling, namely the system approaches a more Type-II superconductor like material. We also point out two potential problems in previous works: (1) the “naive” AdS/CFT dictionary, and (2) the condensate determined only from the GL potential terms. As a result, the condensate increases at finite coupling unlike common folklore.

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).