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p-Wave superconductors in D-brane systems
Bu, YY; Bu, YY (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2012
发表期刊NUCLEAR PHYSICS B
ISSN0550-3213
卷号864期号:3页码:806-822
摘要In this work we take the intersecting D-brane models to explore some properties of p-wave superconductor at strong coupling. Our studies are focused on four-dimensional spacetime, which is not completely researched as in planar case. Optimistically, the AdS/CFT approach to superconductor, or more precisely superconducting-like phase transition, can give us some intuitions about mysterious high T-c superconductors. Concretely, we use defect D4/D6 and D4/D4 (noncritical) models to carry out comparative investigations. To make the system in the finite temperature bath, we assume that the superconducting phase is in the deconfined and chiral symmetry restoring phase for black D4-brane geometry. For the background fields, we use both analytical and numerical methods to solve the coupled nonlinear equations of motion. Near the phase transition, both methods give the mean filed behavior for the superconducting condensate. We then study gauge field perturbations of the systems to probe the AC conductivity. Similar to previous results, there comes out a gap in low frequency regime and the conductivity gets exponentially small as the condensation is enhanced. In contrast to previous investigations, we also compute the AC conductivity along the x direction, which needs to study a coupled sets of fluctuation modes. This shows us the anisotropic feature of p-wave superconductors. (C) 2012 Elsevier B.V. All rights reserved.
部门归属Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词String Theory
学科领域Physics
资助者MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program
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收录类别SCI
语种英语
资助者MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program ; MPS-CAS Doctoral Training program
WOS记录号WOS:000308049700015
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14982
专题2012年知识产出
通讯作者Bu, YY (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Bu, YY,Bu, YY . p-Wave superconductors in D-brane systems[J]. NUCLEAR PHYSICS B,2012,864(3):806-822.
APA Bu, YY,&Bu, YY .(2012).p-Wave superconductors in D-brane systems.NUCLEAR PHYSICS B,864(3),806-822.
MLA Bu, YY,et al."p-Wave superconductors in D-brane systems".NUCLEAR PHYSICS B 864.3(2012):806-822.
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