Photon subtraction (PS) is a widely used technique in the distillation of noise-damped continuous-variable Gaussian entangled states. In the literature, all distillation schemes with the PS technique are restricted to pure Gaussian entanglement or amplitude-damped entanglement, and it is not clear whether PS is applicable in overcoming the phase noise or even more general noise. In this paper, we show that the PS technique is versatile and can still be used to distill entanglement that is subject to phase noise and simultaneous phase and amplitude noise.
© 2013 Optical Society of America
Original Manuscript: March 7, 2013
Revised Manuscript: May 9, 2013
Manuscript Accepted: May 30, 2013
Published: June 24, 2013
ShengLi Zhang, JianHong Shi, ChenHui Jin, XuBo Zou, BaoSen Shi, and GuangCan Guo, "Distillation of phase-damped continuous-variable entanglement with photon subtraction," J. Opt. Soc. Am. B 30, 1922-1927 (2013)