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arXiv · 1510.03204

Ghost free massive gravity with singular reference metrics

Hongsheng Zhang·Xin-Zhou Li
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Abstract

An auxiliary metric (reference metric) is inevitable in massive gravity theory. In the scenario of gauge/gravity duality, a singular reference metric corresponds to momentum dissipations, which describes the electric and heat conductivity for normal conductors. We demonstrate in detail that the massive gravity with singular reference metric is ghost-free.

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Hongsheng Zhang, Xin-Zhou Li. 2015-10-12. Ghost free massive gravity with singular reference metrics. https://doi.org/10.1103/physrevd.93.124039

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