Exotic Holographic Dispersion

Understand

For strongly interacting systems holographic duality is a powerful framework for computing e.g.

• dispersion relations to all orders in perturbation theory.
• Using the standard Reissner-Nordst\"om black hole as a holographic model for a (strange) metal, we obtain exotic dispersion relations for both plasmon modes and quasinormal modes for certain intermediate values of the charge of the black hole.
• The obtained dispersion relations show dissipative behavior which we compare to the generic expectations from the Caldeira-Leggett model for quantum dissipation.