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	BCS-BEC crossover and thermodynamics in asymmetric nuclear matter with pairings in isospin I=0 and I=1 channels
	Mao, Shijun ; Huang, Xuguang ; Zhuang, Pengfei
	2010-10-12 ; 2010-10-12
关键词	SUPERCONDUCTIVITY CONDENSATE SUPERFLUID Physics, Nuclear
中文摘要	The Bardeen/Cooper/Schrieffer-Bose-Einstein condensation (BCS-BEC) crossover and phase diagram for asymmetric nuclear superfluid with pairings in isospin I=0 and I=1 channels are investigated at the mean-field level by using a density-dependent nucleon-nucleon potential. Induced by the in-medium nucleon mass and density-dependent coupling constants, neutron-proton Cooper pairs could be in BEC state at sufficiently low density, but there is no chance for the BEC formation of neutron-neutron and proton-proton pairs at any density and asymmetry. We calculate the phase diagram in asymmetry-temperature plane for weakly interacting nuclear superfluid and find that including the I=1 channel changes significantly the phase structure at low temperature. There appears a new phase with both I=0 and I=1 pairings at low temperature and low asymmetry, and the gapless state in any phase with I=1 pairing is washed out and all excited nucleons are fully gapped.
语种	英语 ; 英语
出版者	AMER PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81635]
专题	清华大学
推荐引用方式 GB/T 7714	Mao, Shijun,Huang, Xuguang,Zhuang, Pengfei. BCS-BEC crossover and thermodynamics in asymmetric nuclear matter with pairings in isospin I=0 and I=1 channels[J],2010, 2010.
APA	Mao, Shijun,Huang, Xuguang,&Zhuang, Pengfei.(2010).BCS-BEC crossover and thermodynamics in asymmetric nuclear matter with pairings in isospin I=0 and I=1 channels..
MLA	Mao, Shijun,et al."BCS-BEC crossover and thermodynamics in asymmetric nuclear matter with pairings in isospin I=0 and I=1 channels".(2010).

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