12 citations · 28 across the 5 of their papers we have counts for
5 papers
Sub-50 attosecond pulse generation from multicycle nonlinear chirped pulses
Yang Xiang, Yueping Niu, Yihong Qi +1
We present a method of producing single attosecond pulses by high-order harmonic generation with multi-cycle nonlinear chirped driver laser pulses. The symmetry of the laser feld i…
Comment on ``Geometric phase of entangled spin pairs in a magnetic field''
Yang Xiang, Shi-Jie Xiong
The degree of entanglement between two spins may change due to interaction. About this we find that a wrong result in a recent work by Ge and Wadati [Phys. Rev. A {\bf72}, 052101(2…
Entropy exchange, coherent information and concurrence
Yang Xiang, Shi-Jie Xiong
For a simple model we derive analytic expressions of entropy exchange and coherent information, from which relations between them and the concurrence are drawn. We find that in the…
Entanglement fidelity and measurement of entanglement preserving in quantum processes
Yang Xiang, Shi-Jie Xiong
The entanglement fidelity provides a measure of how well the entanglement between two subsystems is preserved in a quantum process. By using a simple model we show that in some cas…
The Bound of Entanglement of Superpositions with More Than Two Components
Yang Xiang, Shi-Jie Xiong, Fang-Yu Hong
A bipartite quantum state (for two systems in any dimensions) can be decomposed as a superposition of many components. For a superposition of more than two components we prove that…