A holographic superconductor model in a spatially anisotropic background
| Autor: | Kengo Maeda, Kentaro Tomoda, Jun Ichirou Koga |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
High Energy Physics - Theory
Superconductivity Physics Nuclear and High Energy Physics Condensed matter physics Band gap Critical phenomena Isotropy FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology High Energy Physics - Theory (hep-th) Condensed Matter::Superconductivity Quantum electrodynamics Dilaton Pseudogap Anisotropy Scalar field |
| DOI: | 10.48550/arxiv.1401.6501 |
| Popis: | We investigate an anisotropic model of superconductors in the Einstein-Maxwell-dilaton theory with a charged scalar field. It is found that the critical temperature decreases as the anisotropy becomes large. We then estimate the energy gap of the superconductor, and find that the ratio of the energy gap to the critical temperature increases as the anisotropy increases and so it is larger than that in the isotropic case. We also find that peudogap appears due to the anisotropy. Comment: 16pages, 6 figures. To be published in PRD |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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