16 citations · 19 across the 6 of their papers we have counts for
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Experimental Measurement of Lower and Upper Bounds of Concurrence for Mixed Quantum States
Xiao-Ling Niu, Yan-Xiao Gong, Jian Li +5
We experimentally measure the lower and upper bounds of concurrence for a set of two-qubit mixed quantum states using photonic systems. The measured concurrence bounds are in agree…
Dependence of the decoherence of polarization states in phase-damping channels on the frequency spectrum envelope of photons
Yan-Xiao Gong, Yong-Sheng Zhang, Yu-Li Dong +3
We consider the decoherence of photons suffering in phase-damping channels. By exploring the evolutions of single-photon polarization states and two-photon polarization-entangled s…
Automated and robust population transfer method for three-level system using oscillating dark states
Jun He, Yong-Sheng Zhang, Xiang-Fa Zhou +2
An automated and robust method for adiabatic population transfer and the preparation of an arbitrary quantum superposition state in atomic system using the oscillating dark states…
Two kinds of quantum adiabatic approximation
Ming-Yong Ye, Xiang-Fa Zhou, Yong-Sheng Zhang +1
A simple proof of quantum adiabatic theorem is provided. Quantum adiabatic approximation is divided into two kinds. For Hamiltonian H(t/T), a relation between the size of the error…
Condition for the adiabatic approximation
Ming-Yong Ye, Xiang-Fa Zhou, Yong-Sheng Zhang +1
We give a sufficient condition for the quantum adiabatic approximation, which is quantitative and can be used to estimate error caused by this approximation. We also discuss when t…
A New Proof of The Strong Subadditivity Theorem
Yong-Jian Han, Yong-Sheng Zhang, Guang-Can Guo
It is well known that the strong subadditivity theorem is hold for classical system, but it is very difficult to prove that it is hold for quantum system. The first proof of this t…