Momentum space Z2 number, quantized Berry phase and the quantum phase transitions in spin chain systems

Author: Ma Yu-Quan   Yu Zhao-Xian   Wang Deng-Shan   Xie Bing-Hao   Li Xiang-Gui  

Publisher: Edp Sciences

E-ISSN: 1286-4854|100|6|60001-60001

ISSN: 0295-5075

Source: EPL (EUROPHYSICS LETTERS), Vol.100, Iss.6, 2013-01, pp. : 60001-60001

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Abstract