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Ruan, XX; Gong, H; Du, L; Sun, WM; Zong, HS; Ruan, XX (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
Effect of the induced interaction on the superfluid-transition temperature of ultracold Fermi gases within the T-matrix approximation
Source PublicationPHYSICAL REVIEW A
Language英语
KeywordCondensation Superconductivity
AbstractIn this paper, taking into account the effect of the induced interaction, we calculate the superfluid-transition temperature of ultracold Fermi gases within the framework of the non-self-consistent T-matrix approximation. The result shows that the transition temperature is reduced by about 10% at unitarity due to the induced interaction. In the Bardeen-Cooper-Schrieffer (BCS) limit, the critical temperature is about 0.45T(c)(BCS) and it is the same as the result of the usual Gorkov and Melik-Barkhudarov correction, whereas in the Bose-Einstein condensate (BEC) limit, the influence of the induced interaction can be neglected and the critical temperature turns out to be the transition temperature of ideal Bose gases. Our results show that the induced interaction cannot be neglected in the study of the BCS-BEC crossover. DOI: 10.1103/PhysRevA.87.043608
2013
ISSN1050-2947
Volume87Issue:4Pages:43608
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11275097, 10935001, 1107507]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [11275097, 10935001, 1107507]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [11275097, 10935001, 1107507]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [11275097, 10935001, 1107507]; Research Fund for the Doctoral Program of Higher Education [2012009111002]
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15381
Collection理论物理所科研产出_SCI论文
Corresponding AuthorRuan, XX (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Ruan, XX,Gong, H,Du, L,et al. Effect of the induced interaction on the superfluid-transition temperature of ultracold Fermi gases within the T-matrix approximation[J]. PHYSICAL REVIEW A,2013,87(4):43608.
APA Ruan, XX,Gong, H,Du, L,Sun, WM,Zong, HS,&Ruan, XX .(2013).Effect of the induced interaction on the superfluid-transition temperature of ultracold Fermi gases within the T-matrix approximation.PHYSICAL REVIEW A,87(4),43608.
MLA Ruan, XX,et al."Effect of the induced interaction on the superfluid-transition temperature of ultracold Fermi gases within the T-matrix approximation".PHYSICAL REVIEW A 87.4(2013):43608.
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