古布瑟-罗恰模型中的掺杂全息超导体

IF 2.4 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Communications in Theoretical Physics Pub Date : 2024-04-11 DOI:10.1088/1572-9494/ad30f5

Ziyi Zhao, Wenhe Cai, Shuta Ishigaki

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引用次数: 0

摘要

我们在古伯瑟-罗恰模型中构建了一个掺杂全息超导体，并在温度-掺杂相图的中间位置实现了一个超导圆顶。值得注意的是，与以往的研究不同，我们的圆顶轮廓在接近零温时会向内收缩。通过对相图耦合依赖性的数值观察，我们发现两个量规场之间的耦合在穹顶的形成过程中起着至关重要的作用。我们还分析计算了动量耗散中系统法相的直流电导，并得到了与温度成正比的电阻率。交流电导率是通过数值计算得到的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Doped holographic superconductors in the Gubser–Rocha model

We construct a doped holographic superconductor in the Gubser–Rocha model, and realize a superconducting dome in the middle of the temperature-doping phase diagram. It is worth noting that unlike in previous research, the profile of our dome shrinks inward near to zero temperature. From the numerical observation for the coupling dependence of the phase diagram, we find that the coupling between the two gauge fields plays a crucial role in the formation of the dome. We also analytically calculate the DC conductivity of the normal phase of the system in the momentum dissipation and obtain resistivity which is proportional to the temperature. The AC conductivity is calculated numerically.

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来源期刊

Communications in Theoretical Physics 物理-物理：综合

CiteScore

5.20

自引率

3.20%

发文量

6110

审稿时长

4.2 months

期刊介绍： Communications in Theoretical Physics is devoted to reporting important new developments in the area of theoretical physics. Papers cover the fields of: mathematical physics quantum physics and quantum information particle physics and quantum field theory nuclear physics gravitation theory, astrophysics and cosmology atomic, molecular, optics (AMO) and plasma physics, chemical physics statistical physics, soft matter and biophysics condensed matter theory others Certain new interdisciplinary subjects are also incorporated.