278 citations · 668 across the 15 of their papers we have counts for
15 papers
Quantifying quantum non-Markovianity based on quantum coherence via skew information
Lian-He Shao, Yu-Ran Zhang, Yu Luo +2
Based on the nonincreasing property of quantum coherence via skew information under incoherent completely positive and trace-preserving maps, we propose a non-Markovianity measure…
Experimental demonstration of one-shot coherence distillation: High-dimensional state conversions
Shao-Jie Xiong, Zhe Sun, Xiaofeng Li +7
We experimentally investigate problems of one-shot coherence distillation [Regula, Fang, Wang, and Adesso, Phys. Rev. Lett. 121, 010401 (2018)]. Based on a set of optical devices,…
Coherence measure: Logarithmic coherence number
Zhengjun Xi, Shanshan Yuwen
We introduce a measure of coherence, which is extended from the coherence rank via the standard convex roof construction, we call it the logarithmic coherence number. This approach…
Epsilon-smooth measure of coherence
Zhengjun Xi, Shanshan Yuwen
In this paper, by minimizing the coherence quantifiers over all states in an ball around a given state, we define a generalized smooth quantifier, called the -smooth measure…
Coherence distribution in multipartite systems
Zhengjun Xi
This paper examines the coherence in multipartite systems. We first discuss the distribution of total coherence in a given multipartite quantum state into discord between subsystem…
Quantum coherence quantifiers based on the Rényi -relative entropy
Lian-He Shao, Yongming Li, Yu Luo +1
The resource theories of quantum coherence attract a lot of attention in recent years. Especially, the monotonicity property plays a crucial role here. In this paper we investigate…
Entropic characterization of coherence in quantum evolutions
Zhengjun Xi, Mingliang Hu, Yongming Li +1
By using relative entropy of coherence, we characterize the coherence gain induced by some quantum evolutions, including the cohering power of unitary operations and the decohering…
The Fidelity and Trace Norm Distances for Quantifying Coherence
Lian-He Shao, Zhengjun Xi, Heng Fan +1
We investigate the coherence measures induced by fidelity and trace norm, based on the recent proposed coherence quantification in [Phys. Rev. Lett. 113, 140401, 2014]. We show tha…
Quantum coherence and correlations in quantum system
Zhengjun Xi, Yongming Li, Heng Fan
Criteria of measure quantifying quantum coherence, a unique property of quantum system, are proposed recently. In this paper, we first give an uncertainty-like expression relating…
The one-way unlocalizable quantum discord
Zhengjun Xi, Heng Fan, Yongming Li
In this paper, we present the concept of the one-way unlocalizable quantum discord and investigate its properties. We provide a polygamy inequality for it in tripartite pure quantu…
Measurement-induced nonlocality based on the relative entropy
Zhengjun Xi, Xiaoguang Wang, Yongming Li
We quantify the measurement-induced nonlocality [Luo and Fu, Phys. Rev. Lett. 106, 120401 (2011)] from the perspective of the relative entropy. This quantification leads to an oper…
Necessary and sufficient condition for saturating the upper bound of quantum discord
Zhengjun Xi, Xiao-Ming Lu, Xiaoguang Wang +1
We revisit the upper bound of quantum discord given by the von Neumann entropy of the measured subsystem. Using the Koashi-Winter relation, we obtain a trade-off between the amount…
Pairwise Quantum Correlations for Superpositions of Dicke States
Zhengjun Xi, Heng-Na Xiong, Yongming Li +1
Pairwise correlation is really an important property for multi-qubit states. For the two-qubit X states extracted from Dicke states and their superposition states, we obtain a comp…
Optimal measurements to access classical correlations of two-qubit states
Xiao-Ming Lu, Jian Ma, Zhengjun Xi +1
We analyze the optimal measurements accessing classical correlations in arbitrary two-qubit states. Two-qubit states can be transformed into the canonical forms via local unitary o…
Geometric measure of quantum discord under decoherence
Xiao-Ming Lu, Zheng-Jun Xi, Zhe Sun +1
The dynamics of a geometric measure of the quantum discord (GMQD) under decoherence is investigated. We show that the GMQD of a two-qubit state can be alternatively obtained throug…