426 citations · 1.3k across the 11 of their papers we have counts for
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quant-ph2004★ 19 cited
Fermionic concurrence in the extended Hubbard dimer
Shu-Sa Deng, Shi-Jian Gu, Hai-Qing Lin
In this paper, we introduce and study the fermionic concurrence in a two-site extended Hubbard model. Its behaviors both at the ground state and finite temperatures as function of…
quant-ph2004★ 426 cited
Entanglement and quantum phase transition in the extended Hubbard model
Shi-Jian Gu, Shu-Sa Deng, You-Quan Li +1
We study quantum entanglement in one-dimensional correlated fermionic system. Our results show, for the first time, that entanglement can be used to identify quantum phase transiti…