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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 10 — Apr. 1, 2006
  • pp: 2205–2208

Fuzzy simultaneous measurement of two polarization vector components

Scott Shepard  »View Author Affiliations


Applied Optics, Vol. 45, Issue 10, pp. 2205-2208 (2006)
http://dx.doi.org/10.1364/AO.45.002205


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Abstract

The advent of quantum computers threatens the security of conventional encryption schemes (e.g., those based upon the excessive amount of computational time that might be required to guess your password). Quantum encryption is intended to restore the security by basing it instead upon the impossibility of the simultaneous measurement of two noncommuting operators. I derive a measurement associated with the angular momentum lowering operator, which describes a simultaneous (yet realizable) measurement of two noncommuting spin-vector components. Correlations between two such detectors are also discussed and compared with the conventional Stern–Gerlach results.

© 2006 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(040.5570) Detectors : Quantum detectors
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(270.0270) Quantum optics : Quantum optics
(270.5570) Quantum optics : Quantum detectors
(350.5030) Other areas of optics : Phase

ToC Category:
Photon Correlation and Scattering

History
Original Manuscript: July 6, 2005
Manuscript Accepted: November 10, 2005

Citation
Scott Shepard, "Fuzzy simultaneous measurement of two polarization vector components," Appl. Opt. 45, 2205-2208 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-10-2205

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