Generation of photonic superposition states by two-photon absorption

    Authors

    M. Alexanian;S. K. Bose

    Abbreviated Journal Title

    J. Lumines.

    Keywords

    phase states; qubits; two-photon absorption; coherence; 2-PHOTON ABSORPTION; PHASE STATES; 3-LEVEL ATOM; Optics

    Abstract

    Pure superposition states obtained with two-level atoms, photons, nuclear spins, etc. are of great importance in quantum computing and quantum cryptography. The physical realization of photon qubits (quantum bits) is partially realized with the aid of two-photon absorption, which gives rise to strong coherence of the off-diagonal matrix element between the vacuum and the one-photon state. Although a true phase state is not obtained. nevertheless. the mixed state produced is rather close to being a pure state. (C) 2001 Elsevier Science B.V. All rights reserved.

    Journal Title

    Journal of Luminescence

    Volume

    94

    Publication Date

    1-1-2001

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    815

    Last Page

    819

    WOS Identifier

    WOS:000172944700165

    ISSN

    0022-2313

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