Supersymmetric hydrodynamics from the AdS/CFT correspondence
Giuseppe Policastro
TL;DR
This paper uses the AdS/CFT correspondence to compute the dispersion relation of a supersymmetric hydrodynamic mode, revealing its wave-like behavior and attenuation in strongly coupled N=4 SYM.
Contribution
It provides the first holographic calculation of the phonino mode's dispersion relation, including its speed and attenuation coefficient.
Findings
The phonino mode propagates with a specific speed.
The mode exhibits attenuation characterized by a coefficient.
The dispersion relation is derived holographically at strong coupling.
Abstract
We compute holographically the dispersion relation for a hydrodynamic mode of fluctuation (the phonino) of the density of supersymmetry current in N = 4 SYM at strong coupling. The mode appears as a pole at low frequency and momentum in the correlator of supercurrents. It has a wave-like propagation, and we find its speed and coefficient of attenuation.
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