8 citations · 14 across the 11 of their papers we have counts for
11 papers
Achieving Heisenberg limit under noisy conditions with quantum Zeno dynamics and dynamical decoupling
Ke Zeng, Bakmou Lahcen, Yu Jiang +1
Quantum Zeno dynamics (QZD) and dynamical decoupling (DD) are useful tools that enable the effective suppression of noise in quantum systems. We consider the problem of when (i) no…
Numerical simulations on First-order phase transition through thermal fluctuation
Ligong Bian, Yuefeng Di, Yongtao Jia +2
In this Letter, we numerically present the possibility of the first-order phase transition occurring through the thermal fluctuation in the early universe. We find that when the te…
Restoring Heisenberg-Limited Precision in Non-Markovian Open Quantum Systems via Dynamical Decoupling
Bakmou Lahcen, Ke Zeng, Yu Jiang +1
Non-classical resources enable measurements to achieve a precision that exceeds the limits predicted by the central limit theorem. However, environmental noise arising from system-…
Wide-band Unambiguous Quantum Sensing via Geodesic Evolution
Ke Zeng, Xiaohui Yu, Martin B. Plenio +1
We present a quantum sensing technique that utilizes a sequence of pulses to cyclically drive the qubit dynamics along a geodesic path of adiabatic evolution. This approach eff…
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…
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…
Preservation of quantum Fisher information and geometric phase of a single qubit system in a dissipative reservoir through the addition of qubits
Youneng Guo, Qinglong Tian, Yunfei Mo +1
In this paper, we have investigated the preservation of quantum Fisher information of a single-qubit system coupled to a common zero temperature reservoir through the addition of n…
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…
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…