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Temperature dependent transport coefficients in a dynamical holographic QCD model

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arxiv 1411.5332 v1 pith:72WRSMTF submitted 2014-11-19 hep-ph

Danning Li , Song He , Mei Huang This is my paper · ORCID
classification hep-ph
keywords temperaturecoefficientsdependentphaseratiotransitiontransportviscosity
verification ladder T0 review T1 audit T2 compute T3 formal
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We investigate temperature dependent behavior of various transport coefficients in a dynamical holographical QCD model. We show the nontrivial temperature dependent behavior of the transport coefficients, like bulk viscosity, electric conductivity as well as jet quenching parameter, and it is found that all these quantities reveal information of the phase transition. Furthermore, with introducing higher derivative corrections in 5D gravity, the shear viscosity over entropy density ratio also shows a valley around phase transition, and it is found that the shear viscosity over entropy density ratio times the jet quenching over temperature cubic ratio almost remains as a constant above phase transition, and the value is two times larger than the perturbative result in Phys.Rev.Lett.99.192301(2007).

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Cited by 4 Pith papers

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

  1. Hydrodynamical transports in generic AdS Gauss-Bonnet-scalar Gravity

    hep-th 2025-07 conditional novelty 6.0 of 10

    Analytic shear and bulk viscosity formulas are derived for a five-dimensional Einstein-Scalar-Maxwell-Gauss-Bonnet holographic model, with the shear viscosity cross-checked by Kubo methods.

  2. Transport coefficients and quasinormal modes in Einstein-dilaton holographic QCD

    hep-th 2025-07 conditional novelty 5.0 of 10

    For the quadratic-dilaton Einstein-dilaton holographic model, the vector-sector dispersion relation gives η/s = 1/(4π), and the Kubo-formula bulk viscosity matches JETSCAPE data within a fitted range of the dilaton pa...

  3. Thermodynamics of the Isospectral family of holographic vector mesons

    hep-ph 2026-05 unverdicted novelty 4.0 of 10

    Isospectral transformations in softwall AdS/QCD allow tuning the rho meson's decay constant to its experimental value of 226 MeV, producing a predicted melting temperature of 157 MeV from spectral function computation...

  4. Thermodynamics and transport in holographic QCD with Gauss-Bonnet corrections

    hep-th 2026-05 unverdicted novelty 3.0 of 10

    A holographic QCD model with dilaton-dependent Gauss-Bonnet corrections matches lattice thermodynamics and yields non-monotonic η/s plus a critical endpoint.

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