Abstract

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

Roles of thermal noise and detector efficiency in distillation of continuous variable entanglement state

ShengLi Zhang, YuLi Dong, JianHong Shi, XuBo Zou, and GuangCan Guo
J. Opt. Soc. Am. B 30(10) 2704-2709 (2013)

Local squeezing-assisted two-copy and single-copy continuous variable entanglement distillation

ShengLi Zhang, ChenHui Jin, JianSheng Guo, JianHong Shi, WanSu Bao, XuBo Zou, and GuangCan Guo
J. Opt. Soc. Am. B 31(4) 810-815 (2014)

Scheme for generating distillation-favorable continuous-variable entanglement via three concurrent parametric down-conversions in a single χ⁽²⁾ nonlinear photonic crystal

Yan-Xiao Gong, ShengLi Zhang, P. Xu, and S. N. Zhu
Opt. Express 24(6) 6402-6412 (2016)

Photon subtraction with a Mach–Zehnder interferometer and its application to entanglement enhancement

Shengli Zhang, Song Yang, and JingTing Ma
J. Opt. Soc. Am. B 41(4) 887-900 (2024)

Distillation of single-mode-squeezed entangled state in presence of strong squeezing

ShengLi Zhang and XiangDong Zhang
OSA Continuum 2(6) 2050-2064 (2019)