The entanglement properties of photon subtracted two-mode Gaussian states
Liang-neng Wu, Xiaoyu Chen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2010
We analyze the entanglement condition of a new kind of non-Gaussian quantum state, which is prepared by photon number subtraction from a two mode Gaussian state. Fock space criterion and Shchukin-Vogel criterion are applied and the results are compared. Two kinds of the original Gaussian states are utilized. Their photon subtracted states have different entanglement properties.