Abstract
We study the viscosity spectral function of a holographic dimensional fluid with Schrödinger symmetry. The model is based on a twisted compactification of . We numerically compute the spectral function of the stress tensor correlator for all frequencies, and analytically study the limits of high and low frequency. We compute the shear viscosity, the viscous relaxation time, and the quasinormal mode spectrum in the shear channel. We find a number of unexpected results: The high frequency behavior is governed by a fractional power law, the viscous relaxation time is negative, and the quasinormal mode spectrum in the shear channel is not doubled.
- Received 25 September 2014
DOI:https://doi.org/10.1103/PhysRevD.90.106008
© 2014 American Physical Society