21 citations · 61 across the 8 of their papers we have counts for
6 papers · 1 filter
Noiseless linear amplification-based quantum Ziv-Zakai bound for phase estimation and its Heisenberg error limits in noisy scenarios
Wei Ye, Peng Xiao, Xiaofan Xu +8
In this work, we address the central problem about how to effectively find the available precision limit of unknown parameters. In the framework of the quantum Ziv-Zakai bound (QZZ…
Quantum discord and entanglement in Heisenberg XXZ spin chain after quenches
Jie Ren, Yin-Zhong Wu, Shi-Qun Zhu
Using the adaptive time-dependent density-matrix renormalization group method, the dynamics of entanglement and quantum discord of a one-dimensional spin-1/2 XXZ chain is studied w…
Quench Dynamics of Entanglement in an Opened Anisotropic Spin-1/2 Heisenberg Chain
Jie Ren, Shiqun Zhu
The quantum entanglement dynamics of a one-dimensional spin-1/2 anisotropic XXZ model is studied using the method of the adaptive time-dependent density-matrix renormalization-grou…
Entanglement, fidelity, and quantum phase transition in antiferromagnetic-ferromagnetic alternating Heisenberg chain
Jie Re, Shiqun Zhu
The fidelity and entanglement entropy in an antiferromagnetic-ferromagnetic alternating Heisenberg chain are investigated by using the method of density-matrix renormalization-grou…
Long-range entanglement in the XXZ Heisenberg spin chain after a local quench
Jie Ren, Shiqun Zhu
The long-range entanglement dynamics of an one-dimensional spin-1/2 anisotropic XXZ model are studied using the method of the adaptive time-dependent density-matrix renormalization…
Fidelity and entanglement close to quantum phase transition in a two-leg spin ladder
Jie Ren, Shiqun Zhu
The fidelity susceptibility and entanglement entropy in a system of two-leg spin ladder with rung coupling is investigated by using exact diagonalization of the system. The e…