Identifying the closeness of eigenstates in quantum many-body systems.
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- 作者：Hai-bin Li
- 所属单位：数理与信息工程学院
- 文献类型：期刊
- 发表时间：2017-01-01
- 发表刊物：Chinese Physics B
- 卷号：Vol.26
- 期号：No.8
- 页面范围：1
- Issn号：1674-1056
- 是否译文：否
- 关键字：ENERGY;levels;(Quantum;mechanics);*QUANTUM;theory;*MANY-body;problem;*BOSONS;*FLUCTUATIONS;(Physics);*EIGENVALUES
- 摘要：We propose a quantity called modulus fidelity to measure the closeness of two quantum pure states. We use it to investigate the closeness of eigenstates in one-dimensional hard-core bosons. When the system is integrable, eigenstates close to their neighbo
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