Competition and coexistence of order parameters in holographic multi-band superconductors

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	Competition and coexistence of order parameters in holographic multi-band superconductors
	Cai, RG
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2013
期号	9 页码:74
ISSN号	1029-8479
通讯作者	Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	We construct a holographic multi-band superconductor model with each complex scalar field in the bulk minimally coupled to a same gauge field. Taking into account the back reaction of matter fields on the background geometry and focusing on the two band case with two scalar order parameters, we find that depending on the strength of the back reaction and the charge ratio of the two bulk scalars, five different superconducting phases exist, and three of five phases exhibit some region where both orders coexist and are thermodynamically favored. The other two superconducting phases have only one scalar order. The model exhibits rich phase structure and we construct the full diagram for the five superconducting phases. Our analysis indicates that the equivalent attractive interaction mediated by gravity between the two order parameters tends to make the coexistence of two orders much more easy rather than more difficult.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [10821504, 10975168, 11035008, 11205226, 11175019, 41231066, 11005054]; Ministry of Science and Technology of China [2010CB833004]; National Basic Research Program of China (973 Program) [2011CB811404]; Specialized Research Fund for State Key Laboratories
原文出处	http://dx.doi.org/10.1007/JHEP09(2013)074
语种	英语
WOS记录号	WOS:000325229300004
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15279]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Cai, RG. Competition and coexistence of order parameters in holographic multi-band superconductors[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(9):74.
APA	Cai, RG.(2013).Competition and coexistence of order parameters in holographic multi-band superconductors.JOURNAL OF HIGH ENERGY PHYSICS(9),74.
MLA	Cai, RG."Competition and coexistence of order parameters in holographic multi-band superconductors".JOURNAL OF HIGH ENERGY PHYSICS .9(2013):74.