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Optics Letters

Optics Letters


  • Vol. 20, Iss. 9 — May. 1, 1995
  • pp: 1059–1061

Phase-conjugate quantum communication with optical heterodyne detection

Jeffrey H. Shapiro  »View Author Affiliations

Optics Letters, Vol. 20, Issue 9, pp. 1059-1061 (1995)

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A quantum heterodyne-detection system is described that affords K-ary phase-based digital communication at zero error probability at an average photon number of approximately K 3 / 2 . In phase-based precision measurement—at the same average photon number—this system can measure an arbitrary c-number phase shift to within ±π/K rad with probability one.

© 1995 Optical Society of America

Original Manuscript: November 21, 1994
Published: May 1, 1995

Jeffrey H. Shapiro, "Phase-conjugate quantum communication with optical heterodyne detection," Opt. Lett. 20, 1059-1061 (1995)

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  1. W. P. Schleich, S. M. Barnett, eds., special issue on quantum phase and phase dependent measurements, Phys. Scr. T48, 5–142 (1993).
  2. A. Luks, V. Perinová, Quantum Opt. 6, 125 (1994). [CrossRef]
  3. J. H. Shapiro, Phys. Scr. T 48, 105 (1993). [CrossRef]
  4. J. H. Shapiro, S. S. Wagner, IEEE J. Quantum Electron. QE-20, 803 (1984). [CrossRef]
  5. This guaranteed phase precision is accomplished through the use of a two-mode entangled state. Interestingly, C. H. Bennett and S. J. Wiesner have recently proposed entanglement for another error-free quantum communication purpose [Phys. Rev. Lett. 69, 2881 (1992)]. Their motivation is quantum cryptography, however, not quantum phase measurement. [PubMed]
  6. C. M. Caves, Phys. Rev. D 23, 1693 (1981). [CrossRef]
  7. J. H. Shapiro, G. Saplakoglu, S.-T. Ho, P. Kumar, B. E. A. Saleh, M. C. Teich, J. Opt. Soc. Am. B 4, 1604 (1987). [CrossRef]
  8. G. Saplakoglu, “Photodetection feedback systems,” Ph.D. dissertation (Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Mass., July1988).

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