In a holographic model of chiral matter, thermodynamically unstable states show growing long-wavelength perturbations, and the scalar spectrum displays a diffusion-to-propagating transition with a low-frequency transport peak.
Vector meson quasinormal modes in a finite-temperature AdS/QCD model
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abstract
We study the spectrum of vector mesons in a finite temperature plasma. The plasma is holographically described by a black hole AdS/QCD model. We compute the boundary retarded Green's function using AdS/CFT prescriptions. The corresponding thermal spectral functions show quasiparticle peaks at low temperatures. Then we calculate the quasinormal modes of vector mesons in the soft-wall black hole geometry and analyse their temperature and momentum dependences.
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Dynamical instability and transport peak of chiral matter from holography
In a holographic model of chiral matter, thermodynamically unstable states show growing long-wavelength perturbations, and the scalar spectrum displays a diffusion-to-propagating transition with a low-frequency transport peak.