Holographic response from higher derivatives with homogeneous disorder

In this letter, we study the charge response from higher derivatives over the background with homogeneous disorder introduced by axions. We first explore the bounds on the higher derivatives coupling from DC conductivity and the anomalies of causality and instabilities. Our results indicate no tight...

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Bibliographic Details
Published in:Physics letters. B 2017-06, Vol.769 (C), p.569-574
Main Authors: Fu, Guoyang, Wu, Jian-Pin, Xu, Baicheng, Liu, Jiaqiu
Format: Article
Language:English
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Summary:In this letter, we study the charge response from higher derivatives over the background with homogeneous disorder introduced by axions. We first explore the bounds on the higher derivatives coupling from DC conductivity and the anomalies of causality and instabilities. Our results indicate no tighter constraints on the coupling than that over Schwarzschild–AdS (SS–AdS) background. And then we study the optical conductivity of our holographic system. We find that for the case with γ1
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2017.03.038