670 citations · 2.8k across the 53 of their papers we have counts for
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quant-ph2005★ 670 cited
Decay of Loschmidt Echo Enhanced by Quantum Criticality
H. T. Quan, Z. Song, X. F. Liu +2
We study the transition of a quantum system from a pure state to a mixed one, which is induced by the quantum criticality of the surrounding system coupled to it. To chara…
quant-ph2005★ 34 cited
Characterizing entanglement by momentum-jump in the frustrated Heisenberg ring at quantum phase transition
Xiao-Feng Qian, Tao Shi, Ying Li +2
We study the pairwise concurrences, a measure of entanglement, of the ground states for the frustrated Heisenberg ring to explore the relation between entanglement and quantum phas…