106 citations · 175 across the 13 of their papers we have counts for
7 papers · 2 filters
Covariant feedback Control of arbitrary qudit state against Depolarizing Noise is impossible
ShengLi Zhang, XuBo Zou, Chuanfeng Li +2
In this paper, we prove that it is impossible to construct a convariant quantum feedback control instruments which aim to correct the channel noise imposed on an unknown qubit. The…
Influence of configuration and acoustic phonons on three-qubit controlled-phase gate
Song Yang, Ming Gong, Xubo Zou +3
We discuss the configuration and acoustic phonon effect on the conditional phase gate using self assembled quantum dots. As an example, we discuss the simplest three dots condition…
Measurement Induced Quantum Coherence Recovery
JinShi Xu, ChuanFeng Li, Ming Gong +5
We show that measurement can recover the quantum coherence of a qubit in a non-Markovian environment. The experimental demonstration in an optical system is provided by comparing t…
Simple scheme for expanding a polarization-entangled W state by adding one photon
Yan-Xiao Gong, Xu-Bo Zou, Yun-Feng Huang +1
We propose a simple scheme for expanding a polarization-entangled W state. By mixing a single photon and one of the photons in an n-photon W state at a polarization-dependent beam…
Closing the gap of secure quantum key rate with the Heralded Pair-Coherent States
ShengLi Zhang, XuBo Zou, ChenHui Jin +1
In this paper, we investigate the long-standing gap of quantum key rate between the Weak Coherent Pulse (WCP) and Heralded Single Photon Sources(HSPS) implementation of quantum cry…
A scheme for tunable quantum phase gate and effective preparation of graph-state entanglement
Gong-Wei Lin, Xu-Bo Zou, Ming-Yong Ye +2
A scheme is presented for realizing a quantum phase gate with three-level atoms, solid-state qubits--often called artificial atoms, or ions that share a quantum data bus such as a…