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arXiv · 1411.5452

Thermoelectric DC conductivities with momentum dissipation from higher derivative gravity

Long Cheng·Xian-Hui Ge·Zu-Yao Sun
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Abstract

We present a mechanism of momentum relaxation in higher derivative gravity by adding linear scalar fields to the Gauss-Bonnet theory. We analytically computed all of the DC thermoelectric conductivities in this theory by adopting the method given by Donos and Gauntlett in [arXiv:1406.4742]. The results show that the DC electric conductivity is not a monotonic function of the effective impurity parameter $β$: in the small $β$ limit, the DC conductivity is dominated by the coherent phase, while for larger $β$, pair creation contribution to the conductivity becomes dominant, signaling an incoherent phase. In addition, the DC heat conductivity is found independent of the Gauss-Bonnet coupling constant.

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Long Cheng, Xian-Hui Ge, Zu-Yao Sun. 2015-04-28. Thermoelectric DC conductivities with momentum dissipation from higher derivative gravity. https://doi.org/10.1007/jhep04(2015)135

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