Journal
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
Volume 44, Issue 7-8, Pages 1320-1323Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physe.2012.02.011
Keywords
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Funding
- 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
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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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