174 citations · 556 across the 9 of their papers we have counts for
4 papers · 1 filter
Intrinsic relation between ground-state fidelity and the characterization of a quantum phase transition
Shu Chen, Li Wang, Yajiang Hao +1
The notion of fidelity in quantum information science has been recently applied to analyze quantum phase transitions from the viewpoint of the ground state (GS) overlap for various…
One-dimensional fermionic gases with attractive p-wave interaction in a hard-wall trap
Yajiang Hao, Yunbo Zhang, Shu Chen
We investigate the ground state of the one-dimensional fermionic system enclosed in a hard-wall trap with attractive contact p-wave interactions. Based on the Bethe ansatz method,…
Fidelity and Quantum phase transition for the Heisenberg chain with the next-nearest-neighbor interaction
Shu Chen, Li Wang, Shi-Jian Gu +1
In this paper, we investigate the fidelity for the Heisenberg chain with the next-nearest-neighbor interaction (or the model) and analyze its connections with quantum pha…
Quantum dynamics of repulsively bound atom pairs in the Bose-Hubbard model
Li Wang, Yajiang Hao, Shu Chen
We investigate the quantum dynamics of repulsively bound atom pairs in an optical lattice described by the periodic Bose-Hubbard model both analytically and numerically. In the str…