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Exact renormalization in quantum spin chains
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DOI：10.1103/PhysRevB.82.104404.png)
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摘要
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We introduce a real-space exact renormalization-group method to find exactly solvable quantum spin chains and their ground states. This method allows us to provide a complete list for exact solutions within SU(2) symmetric quantum spin chains with S <= 4 and nearest-neighbor interactions, as well as examples with S=5. We obtain two classes of solutions. One of them converges to the fixed points of renormalization group and the ground states are matrix-product states. Another one does not have renormalization fixed points and the ground states are partially ferromagnetic states.
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MATRIX
STATE
EQUIVALENCE
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期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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引用论文
Matrix product states, projected entangled pair states, and variational renormalization group methods for quantum spin systems量子自旋系统的矩阵乘积态，投影纠缠态和变分重归一化组方法.png)
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