Thermoelectric conductivities, shear viscosity, and stability in an anisotropic linear axion model
- Title
- Thermoelectric conductivities, shear viscosity, and stability in an anisotropic linear axion model
- Author
- 신상진
- Issue Date
- 2015-11
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v. 92, NO 10, Page. 5-19
- 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.
- URI
- https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.106005http://hdl.handle.net/20.500.11754/28776
- ISSN
- 1550-7998; 1550-2368
- DOI
- 10.1103/PhysRevD.92.106005
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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