OSA's Digital Library

Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 4 — Apr. 1, 2014
  • pp: 810–815

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  »View Author Affiliations

JOSA B, Vol. 31, Issue 4, pp. 810-815 (2014)

View Full Text Article

Enhanced HTML    Acrobat PDF (448 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Entanglement distillation is a physically feasible operation which helps to partially or completely eliminate noise-induced decoherence in the distribution of entangled states. In this paper, we investigate the two-copy and single-copy distillation of an amplitude-damped continuous variable two-mode squeezed vacuum state. We consider local squeezing as one of the important tools [Phys. Rev. A 84, 062309 (2011)] to enhance distillation. Our result is twofold. First, we show that local squeezing is useful to improve the distillation of two-copy interference-based distillation. Second, we show single-copy photon subtraction-based distillation is more efficient in providing more entangled outputs. However, such an advantage would diminish and two-copy distillation could succeed with much higher probability of success for a fixed amount of distilled entanglement.

© 2014 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

Original Manuscript: January 23, 2014
Revised Manuscript: February 12, 2014
Manuscript Accepted: February 13, 2014
Published: March 17, 2014

ShengLi Zhang, ChenHui Jin, JianSheng Guo, JianHong Shi, WanSu Bao, XuBo Zou, and GuangCan Guo, "Local squeezing-assisted two-copy and single-copy continuous variable entanglement distillation," J. Opt. Soc. Am. B 31, 810-815 (2014)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres, and W. K. Wootters, “Teleporting an unknown quantum state via dual classical and Einstein–Podolsky–Rosen channels,” Phys. Rev. Lett. 70, 1895–1899 (1993). [CrossRef]
  2. P. G. Kwiat, S. Barraza-Lopez, A. Stefanov, and N. Gisin, “Experimental entanglement distillation and ‘hidden’ non-locality,” Nature 409, 1014–1017 (2001). [CrossRef]
  3. J. W. Pan, C. Simon, Č. Brukner, and A. Zeilinger, “Entanglement purification for quantum communication,” Nature 410, 1067–1070 (2001). [CrossRef]
  4. T. Yamamoto, M. Koashi, Ş. K. Özdemir, and N. Imoto, “Experimental extraction of an entangled photon pair from two identically decohered pairs,” Nature 421, 343–346 (2003). [CrossRef]
  5. R. Reichle, D. Leibfried, E. Knill, J. Britton, R. B. Blakestad, J. D. Jost, C. Langer, R. Ozeri, S. Seidelin, and D. J. Wineland, “Experimental purification of two-atom entanglement,” Nature 443, 838–841 (2006). [CrossRef]
  6. J. Eisert, S. Scheel, and M. B. Plenio, “Distilling Gaussian states with Gaussian operations is impossible,” Phys. Rev. Lett. 89, 137903 (2002). [CrossRef]
  7. J. Fiurášek, “Gaussian transformations and distillation of entangled Gaussian states,” Phys. Rev. Lett. 89, 137904 (2002). [CrossRef]
  8. G. Giedke and J. I. Cirac, “Characterization of Gaussian operations and distillation of Gaussian states,” Phys. Rev. A 66, 032316 (2002). [CrossRef]
  9. B. Hage, A. Samblowski, J. Diguglielmo, A. Franzen, J. Fiurášek, and R. Schnabel, “Preparation of distilled and purified continuous-variable entangled states,” Nat. Phys. 4, 915–918 (2008). [CrossRef]
  10. A. P. Lund and T. C. Ralph, “Continuous-variable entanglement distillation over a general lossy channel,” Phys. Rev. A 80, 032309 (2009). [CrossRef]
  11. D. E. Browne, J. Eisert, S. Scheel, and M. B. Plenio, “Driving non-Gaussian to Gaussian states with linear optics,” Phys. Rev. A 67, 062320 (2003). [CrossRef]
  12. T. Opatrný, G. Kurizki, and D. G. Welsch, “Improvement on teleportation of continuous variables by photon subtraction via conditional measurement,” Phys. Rev. A 61, 032302 (2000). [CrossRef]
  13. S. Olivares, M. G. A. Paris, and R. Bonifacio, “Teleportation improvement by inconclusive photon subtraction,” Phys. Rev. A 67, 032314 (2003). [CrossRef]
  14. A. Kitagawa, M. Takeoka, M. Sasaki, and A. Chefles, “Entanglement evaluation of non-Gaussian states generated by photon subtraction from squeezed states,” Phys. Rev. A 73, 042310 (2006). [CrossRef]
  15. H. Takahashi, J. S. Neergaard-Nielsen, M. Takeuchi, M. Takeoka, K. Hayasaka, A. Furusawa, and M. Sasaki, “Entanglement distillation from Gaussian input states,” Nat. Photonics 4, 178–181 (2010). [CrossRef]
  16. S. Zhang, Y. Dong, J. Shi, X. Zou, and G. Guo, “Roles of thermal noise and detector efficiency in distillation of continuous variable entanglement state,” J. Opt. Soc. Am. B 30, 2704–2709 (2013). [CrossRef]
  17. R. Dong, M. Lassen, J. Heersink, C. Marquardt, R. Filip, G. Leuchs, and U. L. Andersen, “Experimental entanglement distillation of mesoscopic quantum states,” Nat. Phys. 4, 919–923 (2008). [CrossRef]
  18. B. Hage, A. Franzen, J. DiGuglielmo, P. Marek, J. Fiurášek, and R. Schnabel, “On the distillation and purification of phase-diffused squeezed states,” New J. Phys. 9, 227 (2007). [CrossRef]
  19. S. Zhang and P. van Loock, “Local Gaussian operations can enhance continuous-variable entanglement distillation,” Phys. Rev. A 84, 062309 (2011). [CrossRef]
  20. S. L. Braunstein and P. van Loock, “Quantum information with continuous variables,” Rev. Mod. Phys. 77, 513–577 (2005). [CrossRef]
  21. G. Adesso and F. Illuminati, “Entanglement in continuous-variable systems: recent advances and current perspectives,” J. Phys. A 40, 7821–7880 (2007). [CrossRef]
  22. N. Lee, H. Benichi, Y. Takeno, S. Takeda, J. Webb, E. Huntington, and A. Furusawa, “Teleportation of nonclassical wave packets of light,” Science 332, 330–333 (2011). [CrossRef]
  23. G. Vidal and R. F. Werner, “Computable measure of entanglement,” Phys. Rev. A 65, 032314 (2002). [CrossRef]
  24. S. Yang, X. Zou, S. Zhang, B.-S. Shi, P. van Loock, and G. Guo, “Multipartite continuous-variable entanglement distillation using local squeezing and only one photon-subtraction operation,” Arxiv:1106.1536 (2011).
  25. W. J. Munro, “Optimal states for Bell-inequality violations using quadrature-phase homodyne measurements,” Phys. Rev. A 59, 4197–4201 (1999). [CrossRef]
  26. A. Acín, N. J. Cerf, A. Ferraro, and J. Niset, “Tests of multimode quantum nonlocality with homodyne measurement,” Phys. Rev. A 79, 012112 (2009). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited