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Continuous quantum phase transition between two topologically distinct valence bond solid states associated with the same spin value 期刊论文
PHYSICAL REVIEW B, 2011, 卷号: 83, 期号: 1, 页码: 14409
Authors:  Zheng, D;  Zhang, GM;  Xiang, T;  Lee, DH;  Zheng, D (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
Adobe PDF(664Kb)  |  Favorite  |  View/Download:105/24  |  Submit date:2013/05/17
Ground-states  Antiferromagnets  Breaking  Models  Gap  
Topologically distinct classes of valence-bond solid states with their parent Hamiltonians 期刊论文
PHYSICAL REVIEW B, 2009, 卷号: 80, 期号: 1, 页码: -
Authors:  Tu, Hong-Hao;  Zhang, Guang-Ming;  Xiang, Tao;  Liu, Zheng-Xin;  Ng, Tai-Kai;  Zhang, GM , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
Adobe PDF(204Kb)  |  Favorite  |  View/Download:117/14  |  Submit date:2012/08/02
Quantum Spin Chains  Density-matrix Renormalization  Ground-states  Symmetry-breaking  Hall States  Edge States  Antiferromagnets  Models  Surfaces  
Maximized string order parameters in the valence bond solid states of quantum integer spin chains 期刊论文
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2009, 卷号: 42, 期号: 28, 页码: -
Authors:  Tu, Hong-Hao;  Zhang, Guang-Ming;  Xiang, Tao;  Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
Adobe PDF(124Kb)  |  Favorite  |  View/Download:89/14  |  Submit date:2012/08/02
Symmetry-breaking  Haldane Phase  Antiferromagnets  Models  
String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states 期刊论文
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2008, 卷号: 41, 期号: 41, 页码: -
Authors:  Tu, Hong-Hao;  Zhang, Guang-Ming;  Xiang, Tao;  Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
Adobe PDF(115Kb)  |  Favorite  |  View/Download:111/37  |  Submit date:2012/08/02
Quantum Spin Chains  Haldane Phase  Models  Antiferromagnets  Breaking  S=1  
Topological characterization of quantum phase transitions in a spin-1/2 model 期刊论文
PHYSICAL REVIEW LETTERS, 2007, 卷号: 98, 期号: 8, 页码: -
Authors:  Feng, Xiao-Yong;  Zhang, Guang-Ming;  Xiang, Tao;  Feng, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
Adobe PDF(1796Kb)  |  Favorite  |  View/Download:86/11  |  Submit date:2012/08/02
Breaking