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Competitions between quantum correlations in the quantum-memory-assisted entropic uncertainty relation
Ming-Liang Hu, Heng Fan
With the aid of a quantum memory, the uncertainty about the measurement outcomes of two incompatible observables of a quantum system can be reduced. We investigate this measurement…
Dynamics of entropic measurement-induced nonlocality in structured reservoirs
Ming-Liang Hu, Heng Fan
We propose the entropic measurement-induced nonlocality (MIN) as the maximal increment of von Neumann entropy induced by the locally non-disturbing measurement, and study behaviors…
Relations between entanglement, Bell-inequality violation and teleportation fidelity for the two-qubit X states
Ming-Liang Hu
Based on the assumption that the receiver Bob can apply any unitary transformation, Horodecki {\it et al.} [Phys. Lett. A {\bf 222}, 21 (1996)] proved that any mixed two spin-1/2 s…
Comment on: Stochastic local operations and classical communication Invariant and the residual entanglement for n qubits
XinWei Zha, HaiYang Song, MingLiang Hu
In a recent paper [Phys. Rev. A 76, 032304(2007)], Li et al. proposed the definition of the residual entanglement for n qubits by means of the Stochastic local operations and class…
An Ideal Channel of Long Distance Entanglement in Spin Systems
Xiao-Qiang Xi, T. Zhang, R. H. Yue +2
We propose a scheme for using spin chain to realize an ideal channel of long distance entanglement. The results show that there has different entanglement in different Hilbert subs…
Non-EPR pairs quantum channel for teleporting an arbitrary two-qubit state
Xin-Wei Zha, Hai-Yang Song
Recently, Yeo and Chua [Phys. have given an explicit protocol for faithfully teleporting an arbitrary two-qubit state via a genuine four-qubit entangled state, which is not reducib…