Entanglement and quantum phase transition in the extended Hubbard model.

نویسندگان

  • Shi-Jian Gu
  • Shu-Sa Deng
  • You-Quan Li
  • Hai-Qing Lin
چکیده

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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عنوان ژورنال:
  • Physical review letters

دوره 93 8  شماره 

صفحات  -

تاریخ انتشار 2004