期刊
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
卷 44, 期 7-8, 页码 1320-1323出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2012.02.011
关键词
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资金
- National Natural Science Foundation of China [11105049, 11104159]
- University Natural Science Research Foundation of JiangSu Province [11KJA510002]
- Key Lab of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education
We investigate the quantum critical behavior in the anisotropy XY spin chain by means of geometric discord (D-G). Near the critical point, the key ingredients of the quantum criticality (e.g, finite-size scaling behavior, universality principle and critical exponents) are investigated carefully, and the results show that the D-G is reliable to characterize the quantum critical behavior in such system. (c) 2012 Elsevier B.V. All rights reserved.
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