156 citations · 596 across the 33 of their papers we have counts for
33 papers
Quantum-speed-limit time for multiqubit open systems
Chen Liu, Zhen-Yu Xu, Shiqun Zhu
Quantum-speed-limit (QSL) time captures the intrinsic minimal time interval for a quantum system evolving from an initial state to a target state. In single qubit open systems, it…
Finite-temperature decoherence of spin states in a single molecular magnet
Xiang Hao, Xiaoqun Wang, Chen Liu +1
We investigate the quantum evolution of spin states of a single molecular magnet in a local electric field. The decoherence of a single molecula…
Nonunital non-Markovian dynamics induced by a spin bath and interplay of quantum Fisher information
Xiang Hao, Wenjiong Wu, Shiqun Zhu
We explore the nonunital non-Markovian dynamics of a qubit immersed in a spin bath. The nonunital environmental effects on the precisions of quantum parameter estimation are invest…
Dynamics of Quantum Fisher information in a spin-boson model
Xiang Hao, Ninghua Tong, Shiqun Zhu
Quantum Fisher information characterizes the phase sensitivity of qubits in the spin-boson model with a finite bandwidth spectrum. In contrast with Markovian reservoirs, the quantu…
Quantum speedup in a memory environment
Zhen-Yu Xu, Shunlong Luo, W. L. Yang +2
Memory (non-Markovian) effect is found to be able to accelerate quantum evolution [S. Deffner and E. Lutz, Phys. Rev. Lett. 111, 010402 (2013)]. In this work, for an atom in a stru…
Non-Markovian effect on remote state preparation
Zhen-Yu Xu, Chen Liu, Shunlong Luo +1
Memory effect of non-Markovian dynamics in open quantum systems is often believed to be beneficial for quantum information processing. In this work, we employ an experimentally con…