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Holographic Plasmon Relaxation with and without Broken Translations

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arxiv 1905.00804 v2 pith:33I2HYJ3 submitted 2019-05-02 hep-th cond-mat.str-el

Matteo Baggioli , Ulf Gran , Amadeo Jimenez Alba , Marcus Tornsö , Tobias Zingg This is my paper · ORCID
classification hep-thcond-mat.str-el
keywords holographicrelaxationfrequencymodesplasmaplasmonadditionalanalyze
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We study the dynamics and the relaxation of bulk plasmons in strongly coupled and quantum critical systems using the holographic framework. We analyze the dispersion relation of the plasmonic modes in detail for an illustrative class of holographic bottom-up models. Comparing to a simple hydrodynamic formula, we entangle the complicated interplay between the three least damped modes and shed light on the underlying physical processes. Such as the dependence of the plasma frequency and the effective relaxation time in terms of the electromagnetic coupling, the charge and the temperature of the system. Introducing momentum dissipation, we then identify its additional contribution to the damping. Finally, we consider the spontaneous symmetry breaking (SSB) of translational invariance. Upon dialing the strength of the SSB, we observe an increase of the longitudinal sound speed controlled by the elastic moduli and a decrease in the plasma frequency of the gapped plasmon. We comment on the condensed matter interpretation of this mechanism.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Viscoelastic hydrodynamics and holography

    hep-th 2019-08 accept novelty 7.0 of 10

    A first-order relativistic hydrodynamics of anisotropic viscoelastic crystals, including new transport coefficients, a dual higher-form superfluid description, and holographic realizations.

  2. Holographic fundamental matter in multilayered media

    hep-th 2019-09 conditional novelty 6.0 of 10

    A top-down holographic D3-D5-D7 construction yields anisotropic thermodynamics and distinct in-plane and off-plane sound and diffusion modes for strongly coupled layered matter with fundamental flavors.

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