Lifshitz quasinormal modes and relaxation from holography
نویسندگان
چکیده
We obtain relaxation times for field theories with Lifshitz scaling and with holographic duals Einstein-Maxwell-Dilaton gravity theories. This is done by computing quasinormal modes of a bulk scalar field in the presence of Lifshitz black branes. We determine the relation between relaxation time and dynamical exponent z, for various values of boundary dimension d and operator scaling dimension. It is found that for d > z+1, at zero momenta, the modes are underdamped, whereas for d ≤ z+1 the system is always overdamped. For d = z + 1 and zero momenta, we present analytical results.
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