Entanglement Swapping of Pair Coherent States with Phase Decoherence
Ye-Qi Zhang, Jing‐Bo Xu · Chinese Physics Letters · 2009
We investigate the entanglement swapping of continuous variable using the pair coherent state as the input state and the two-mode squeezed vacuum which is exposed in a phase decoherence environment as the quantum channel. By adopting the log-negativity as the measure of entanglement, we analyze how entanglement of the two initial states and the phase decoherence environment affect the entanglement swapping quality.