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arXiv 1308.1920hep-thcond-mat.dis-nncond-mat.supr-congr-qc
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肮脏的全息超导体

A Dirty Holographic Superconductor

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

摘要:

通过在边界上引入一个随机化学势,研究了无序对全息超导体的影响。我们考虑了无序的各种实现,发现超导电性的临界温度得到了提高。我们还提出了在这个系统中的重整化的精确形式的证据。也就是说,当无规化学势由$k^{-2α}$形式的傅立叶谱表征时,我们发现凝聚体和电荷密度的谱又是幂律的,其指数精确且普遍地由$α$的线性函数控制。

英文摘要:

We study the effects of disorder on a holographic superconductor by introducing a random chemical potential on the boundary. We consider various realizations of disorder and find that the critical temperature for superconductivity is enhanced. We also present evidence for a precise form of renormalization in this system. Namely, when the random chemical potential is characterized by a Fourier spectrum of the form $k^{-2α}$ we find that the spectra of the condensate and the charge density are again power-laws, whose exponents are accurately and universally governed by linear functions of $α$.

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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