57 citations · 75 across the 10 of their papers we have counts for
10 papers
Witnessing criticality in non-Hermitian systems via entropic uncertainty relation
youneng Guo, Guoyou Wang
Non-Hermitian systems with exceptional points lead to many intriguing phenomena due to the coalescence of both eigenvalues and corresponding eigenvectors, in comparison to Hermitia…
Unconventional steady states and topological phases in an open two-level non-Hermitian system
Jian Xu, Youneng Guo
Decoherence and non-Hermiticity are two different effects of the open quantum systems. Both of them have triggered many interesting phenomena. In this paper, we theoretically study…
Memory effects teleportation of quantum Fisher information under decoherence
Y. N. Guo, K. zeng, P. X. Chen
We have investigated how memory effects on the teleportation of quantum Fisher information(QFI) for a single qubit system using a class of X-states as resources influenced by decoh…
The quantum entropic uncertainty relation and entanglement witness in the two-atom system coupling with the non-Markovian environments
Hong-Mei Zou, Mao-Fa Fang, Bai-Yuan Yang +3
The quantum entropic uncertainty relation and entanglement witness in the two-atom system coupling with the non-Markovian environments are studied by the time-convolutionless maste…
Entropic uncertainty relation under quantum channels with memory
Youneng Guo, Maofa Fang, Ke Zeng
Recently, Xu et al. [Phys. Rev. A 86, 012113(2012)] explored the behavior of the entropic uncertainty relation under the influence of local unital and nonunital noisy channels for…
Quantum coherence of two-qubit over quantum channels with memory
You-neng Guo, Ke Zeng, Qing-long Tian +1
Using the axiomatic definition of the coherence measure, such as the norm and the relative entropy, we study the phenomena of two-qubit system quantum coherence through qua…
Non-Hermitian-assisted enhancement precision of parameter estimation
Youneng Guo, Maofa Fang, Gouyou Wang +2
Recently, Zhong et al. [Phys. Rev. A 87, 022337(2013)] investigated the dynamics of quantum Fisher information (QFI) in the presence of decoherence. We here reform their results an…
Generation and protection of steady-state quantum correlations due to quantum channels with memory
You-neng Guo, Mao-fa Fang, Guo-you Wang +1
We have proposed a scheme of the generation and preservation of two-qubit steady state quantum correlations through quantum channels where successive uses of the channels are corre…
Pairwise quantum discord for a symmetric multi-qubit system in different types of noisy channels
You-neng Guo, Mao-fa Fang, Zeng Ke +1
We study the pairwise quantum discord (QD) for a symmetric multi-qubit system in different types of noisy channels, such as phase-flip, amplitude damping, phase-damping, and depola…
Distillability sudden death and sudden birth in a two-qutrit system under decoherence of finite temperature
Youneng Guo, Maofa Fang, Guoyou Wang +2
Distillability sudden death and sudden birth in a two-qutrit system under decoherence of finite temperature is studied in detail. By using of the negativity and realignment criteri…