Heng-Na Xiong

most citedReduced fidelity susceptibility and its finite-size scaling behaviors

45 citations · 53 across the 2 of their papers we have counts for

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quant-ph2008★ 8 cited

Reduced fidelity approach for quantum phase transitions in spin-1/2 dimerized Heisenberg chains

Heng-Na Xiong, Jian Ma, Zhe Sun +1

We use reduced fidelity approach to characterize quantum phase transitions in the one-dimensional spin-1/2 dimerized Heisenberg chain in the antiferromagnetic case. The reduced fid…

quant-ph2008★ 45 cited

Reduced fidelity susceptibility and its finite-size scaling behaviors

Jian Ma, Lei Xu, Hengna Xiong +1

We derive a general formula of the reduced fidelity susceptibility when the reduced density matrix is $2 \times 2$ block-diagonal. By using this result and the continuous unitary tra…