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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 6 — Mar. 15, 2010
  • pp: 6149–6155

Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier

Yu Wang, Heng Shen, Xiaoli Jin, Xiaolong Su, Changde Xie, and Kunchi Peng  »View Author Affiliations


Optics Express, Vol. 18, Issue 6, pp. 6149-6155 (2010)
http://dx.doi.org/10.1364/OE.18.006149


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Abstract

We experimentally demonstrated that the quantum correlations of amplitude and phase quadratures between signal and idler beams produced from a non-degenerate optical parametric amplifier (NOPA) can be significantly improved by using a mode cleaner in the pump field and reducing the phase fluctuations in phase locking systems. Based on the two technical improvements the quantum entanglement measured with a two-mode homodyne detector is enhanced from ~ 4 dB to ~ 6 dB below the quantum noise limit using the same NOPA and nonlinear crystal.

© 2010 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.6570) Quantum optics : Squeezed states

ToC Category:
Quantum Optics

History
Original Manuscript: January 11, 2010
Revised Manuscript: February 9, 2010
Manuscript Accepted: March 10, 2010
Published: March 11, 2010

Citation
Yu Wang, Heng Shen, Xiaoli Jin, Xiaolong Su, Changde Xie, and Kunchi Peng, "Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier," Opt. Express 18, 6149-6155 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-6-6149


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References

  1. A. Furusawa, J. L. Sørensen, S. L. Braunstein, C. A. Fuchs, H. J. Kimble, and E. S. Polzik, "Unconditional Quantum Teleportation," Science 282, 706-709 (1998). [CrossRef] [PubMed]
  2. H. Yonezawa, T. Aoki, and A. Furusawa, "Demonstration of a quantum teleportation network for continuous variables," Nature 431,430-433 (2004) [PubMed]
  3. W. P. Bowen, N. Treps, B. C. Buchler, R. Schnabel, T. C. Ralph, Hans-A. Bachor, T. Symul, and P. K. Lam, "Experimental investigation of continuous-variable quantum teleportation," Phys. Rev. A 67, 032302 (2003). [CrossRef]
  4. X. Y. Li, Q. Pan, J. T. Jing, J. Zhang, C. D. Xie, and K. C. Peng, "Quantum Dense Coding Exploiting a Bright Einstein-Podolsky-Rosen Beam," Phys. Rev. Lett. 88, 047904 (2002). [CrossRef] [PubMed]
  5. J. T. Jing, J. Zhang, Y. Yan, F. G. Zhao, C. D. Xie, and K. C. Peng, "Experimental Demonstration of Tripartite Entanglement and Controlled Dense Coding for Continuous Variables," Phys. Rev. Lett. 90, 167903 (2003). [CrossRef] [PubMed]
  6. X. J. Jia, X. L. Su, Q. Pan, J. R. Gao, C. D. Xie, and K. C. Peng, "Experimental Demonstration of Unconditional Entanglement Swapping for Continuous Variables," Phys. Rev. Lett. 93, 250503 (2004). [CrossRef]
  7. K. Bencheikh, T. Symul, A. Jankovic, and J. A. Levenson, "Quantum key distribution with continuous variables," J. Mod. Opt. 48, 1903-1920 (2001). [CrossRef]
  8. X. Su, W. Wang, Y. Wang, X. Jia, C. Xie, and K. Peng, "Continuous variable quantum key distribution based on optical entangled states without signal modulation," Europhys. Lett. 87, 2000-2005 (2009). [CrossRef]
  9. N. C. Menicucci, P. van Loock, M. Gu, C. Weedbrook, T. C. Ralph, and M. A. Nielsen, "Universal Quantum Computation with Continuous-Variable Cluster States," Phys. Rev. Lett. 97, 110501 (2006). [CrossRef] [PubMed]
  10. A. H. Tan, Y. Wang, X. L. Jin, X. L. Su, X. J. Jia, J. Zhang, C. D. Xie, and K. C. Peng, "Experimental generation of genuine four-partite entangled states with total three-party correlation for continuous variables," Phys. Rev. A 78, 013828 (2008). [CrossRef]
  11. J. Yoshikawa, Y. Miwa, A. Huck, U. L. Andersen, P. van Loock, and A. Furusawa, "Demonstration of a Quantum Nondemolition Sum Gate," Phys. Rev. Lett. 101, 250501 (2008). [CrossRef] [PubMed]
  12. A. Furusawa, and N. Takei, "Quantum teleportation for continuous variables and related quantum information processing," Phys. Rep. 443, 97-119 (2007). [CrossRef]
  13. S. F. Pereira, K. C. Peng, and H. J. Kimble, "Squeezed state generation and nonclassical correlations in nondegenerate parametric down conversion," in Coherence and Quantum Optics VI, J. H. Eberly, L. Mandel and E. Wolf, eds., (Plenum, New York, 1990) pp. 889-890
  14. Z. Y. Ou, S. F. Pereira, H. J. Kimble, and K. C. Peng, "Realization of the Einstein-Podolsky-Rosen paradox for continuous variables," Phys. Rev. Lett. 68, 3663 (1992). [CrossRef] [PubMed]
  15. Y. Zhang, H. Wang, X. Y. Li, J. T. Jing, C. D. Xie, and K. C. Peng, "Experimental generation of bright two-mode quadrature squeezed light from a narrow-band nondegenerate optical parametric amplifier," Phys. Rev. A 62, 023813 (2000). [CrossRef]
  16. W. P. Bowen, R. Schnabel, P. K. Lam, and T. C. Ralph, "Experimental Investigation of Criteria for Continuous-Variable Entanglement," Phys. Rev. Lett. 90, 043601 (2003). [CrossRef] [PubMed]
  17. J. Laurat, T. Coudreau, G. Keller, N. Treps, and C. Fabre, "Effects of mode coupling on the generation of quadrature Einstein-Podolsky-Rosen entanglement in a type-II optical parametric oscillator below threshold," Phys. Rev. A 71, 022313 (2005). [CrossRef]
  18. A. S. Villar, L. S. Cruz, K. N. Cassemiro, M. Martinelli, and P. Nussenzveig, "Generation of bright two-color continuous variable entanglement," Phys. Rev. Lett. 95, 243603 (2005). [CrossRef] [PubMed]
  19. X. Su, A. Tan, X. Jia, Q. Pan, C. Xie, and K. Peng, "Experimental demonstration of quantum entanglement between frequency-nondegenerate optical twin beams," Opt. Lett.  31, 1133-1135 (2006) [PubMed]
  20. J. T. Jing, S. Feng, R. Bloomer, and O. Pfister, "Experimental continuous-variable entanglement of phase-locked bright optical beams," Phys. Rev. A 74, 041804 (2006). [CrossRef]
  21. Y. Takeno, M. Yukawa, H. Yonezawa, and A. Furusawa, "Observation of -9 dB quadrature squeezing with improvement of phase stability in homodyne measurement," Opt. Express 15,4321-4327 (2007). http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-7-4321 [CrossRef] [PubMed]
  22. H. Vahlbruch, M. Mehmet, S. Chelkowski, B. Hage, A. Franzen, N. Lastzka, S. Goßler, K. Danzmann, and R. Schnabel, "Observation of Squeezed Light with 10-dB Quantum-Noise Reduction," Phys. Rev. Lett. 100, 033602 (2008). [CrossRef] [PubMed]
  23. M. Yukawa, R. Ukai, P. van Loock, and A. Furusawa, "Experimental generation of four-mode continuous-variable cluster states," Phys. Rev. A 78, 012301 (2008). [CrossRef]
  24. R. W. P. Drever, J. L. Hall, F. V. Kowalski, J . Hough, G. M . Ford, A. J. Munley, and H . Ward, "Laser phase and frequency stabilization using an optical resonator," Appl. Phys. B 31, 97-105 (1983). [CrossRef]
  25. J. Zhang and K. C. Peng, "Quantum teleportation and dense coding by means of bright amplitude-squeezed light and direct measurement of a Bell state," Phys. Rev. A 62, 064302 (2000). [CrossRef]
  26. Lu-Ming Duan, G. Giedke, J. I. Cirac, and P. Zoller, "Inseparability Criterion for Continuous Variable Systems," Phys. Rev. Lett. 84, 2722 (2000). [CrossRef] [PubMed]
  27. P. T. Cochrane, T. C. Ralph, and G. J. Milburn, "Teleportation improvement by conditional measurements on the two-mode squeezed vacuum," Phys. Rev. A 65, 062306 (2002). [CrossRef]

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