Thermoelectric conductivities, shear viscosity, and stability in an anisotropic linear axion modelopen access
- Authors
- Ge, Xian-Hui; Ling, Yi; Niu, Chao; Sin, Sang-Jin
- Issue Date
- Nov-2015
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.92, no.10, pp.1 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 92
- Number
- 10
- Start Page
- 1
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142891
- DOI
- 10.1103/PhysRevD.92.106005
- ISSN
- 1550-7998
- Abstract
- We study thermoelectric conductivities and shear viscosities in a holographically anisotropic model, which is dual to a spatially anisotropic N = 4 super-Yang-Mills theory at finite chemical potential. Momentum relaxation is realized through perturbing the linear axion field. Ac conductivity exhibits a coherent/incoherent metal transition. Deviations from the Wiedemann-Franz law are also observed in our model. The longitudinal shear viscosity for prolate anisotropy violates the bound conjectured by Kovtun-Son-Starinets. We also find that thermodynamic and dynamical instabilities are not always equivalent by examining the Gubser-Mitra conjecture.
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