EPL

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

Yu-Quan Ma, Zhao-Xian Yu, Deng-Shan Wang, Bing-Hao Xie and Xiang-Gui Li

EPL, 100 6 (2012) 60001

Published online: 08 January 2013

DOI: 10.1209/0295-5075/100/60001

Yu-Quan Ma

Zhao-Xian Yu

Deng-Shan Wang

Bing-Hao Xie

Xiang-Gui Li

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