ITP OpenIR  > 理论物理所科研产出  > SCI论文
Qian, XF; Shi, T; Li, Y; Song, Z; Sun, CP; Qian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China.
Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition
Source PublicationPHYSICAL REVIEW A
KeywordNearest-neighbor Interaction Linear Chain
AbstractWe study the pairwise concurrences, a measure of entanglement, of the ground states for the frustrated Heisenberg ring to explore the relation between entanglement and quantum phase transition associated with the momentum jump. The ground-state concurrences between any two sites are obtained analytically and numerically. It shows that the summation of all possible pairwise concurrences is an appropriate candidate to depict the phase transition. We also investigate the role that the momentum takes in the jump of concurrence at the critical points. We find that an abrupt momentum change results in the maximal concurrence difference of two degenerate ground states.
2005
ISSN1050-2947
Volume72Issue:1Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13790
Collection理论物理所科研产出_SCI论文
Corresponding AuthorQian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China.
Recommended Citation
GB/T 7714
Qian, XF,Shi, T,Li, Y,et al. Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition[J]. PHYSICAL REVIEW A,2005,72(1):-.
APA Qian, XF,Shi, T,Li, Y,Song, Z,Sun, CP,&Qian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China..(2005).Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition.PHYSICAL REVIEW A,72(1),-.
MLA Qian, XF,et al."Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition".PHYSICAL REVIEW A 72.1(2005):-.
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