Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP04(2015)135
Keywords
Gauge-gravity correspondence; Holography and condensed matter physics (AdS/CMT)
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Funding
- NSFC, China [11375110]
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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 beta: in the small beta limit, the DC conductivity is dominated by the coherent phase, while for larger beta, 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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