Fuzzy simultaneous measurement of two polarization vector components

    Authors

    S. Shepard

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    QUANTUM-THEORY; Optics

    Abstract

    The advent of quantum computers threatens the security of conventional encryption schemes (e.g., those based upon the excessive a-mount 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. (c) 2006 Optical Society of America.

    Journal Title

    Applied Optics

    Volume

    45

    Issue/Number

    10

    Publication Date

    1-1-2006

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    2205

    Last Page

    2208

    WOS Identifier

    WOS:000236572000008

    ISSN

    1559-128X

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