Title

Generation of photonic superposition states by two-photon absorption

Authors

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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