arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.7526hep-thcond-mat.dis-nncond-mat.str-elcond-mat.supr-con
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无序p波全息超导体

Holographic p-wave Superconductor with Disorder

Daniel Arean, Arya Farahi, Leopoldo A. Pando Zayas, Ignacio Salazar Landea, Antonello Scardicchio

摘要:

我们通过引入一个定义了载流子局部能量的随机化学势来实现p波全息超导体的无序效应。由于矢量序参量的取向有各种可能性,我们探讨了凝聚体在平行和垂直于引入的无序方向上的行为。我们澄清了代表竞争解决方案的各种分支的性质,并构建了无序相图。我们发现,适度的无序增强超导电性所确定的冷凝物的值。虽然我们主要集中在不相关的噪声,我们也考虑了其光谱特性的障碍,并详细研究其对凝聚体和电荷密度的光谱特性的影响。我们发现相当普遍的反应所得到的功率谱的特点是无序功率谱的线性函数。

英文摘要:

We implement the effects of disorder on a holographic p-wave superconductor by introducing a random chemical potential which defines the local energy of the charge carriers. Since there are various possibilities for the orientation of the vector order parameter, we explore the behavior of the condensate in the parallel and perpendicular directions to the introduced disorder. We clarify the nature of various branches representing competing solutions and construct the disordered phase diagram. We find that moderate disorder enhances superconductivity as determined by the value of the condensate. Though we mostly focus on uncorrelated noise, we also consider a disorder characterized by its spectral properties and study in detail its influence on the spectral properties of the condensate and charge density. We find fairly universal responses of the resulting power spectra characterized by linear functions of the disorder power spectrum.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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