Entanglement and quantum phase transition in the extended Hubbard model |
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Authors: | Gu Shi-Jian Deng Shu-Sa Li You-Quan Lin Hai-Qing |
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Institution: | Department of Physics, The Chinese University of Hong Kong, Hong Kong, China. |
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Abstract: | We study quantum entanglement in a one-dimensional correlated fermionic system. Our results show, for the first time, that entanglement can be used to identify quantum phase transitions in fermionic systems. |
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