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arXiv · 1706.07026

$R^2$ corrections to holographic Schwinger effect

Zi-qiang Zhang·Chong Ma·De-fu Hou·Gang Chen
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Abstract

We study $R^2$ corrections to the holographic Schwinger effect in an AdS black hole background and a confining D3-brane background, respectively. The potential analysis for these backgrounds is presented. The critical values for the electric field are obtained. It is shown that for both backgrounds increasing the Gauss-Bonnet parameter the Schwinger effect is enhanced. Moreover, the results provide an estimate of how the Schwinger effect changes with the shear viscosity to entropy density ratio, $\eta/s$, at strong coupling.

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Zi-qiang Zhang, Chong Ma, De-fu Hou, Gang Chen. 2017-06-20. $R^2$ corrections to holographic Schwinger effect. https://doi.org/10.1016/j.aop.2017.04.007

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