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Proceedings Paper

Generation and communication of photon-photon and atom-atom entangled states
Author(s): Gershon Kurizki; Inbal Friedler; David Petrosyan
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Paper Abstract

We introduce and discuss two schemes for generation and transfer of photon-photon and atom-atom entanglement. First we propose a method to achieve a large conditional phase shift of a probe field in the presence of a single-photon control field whose carrier frequency is within the photonic band gap created by spatially-periodic modulation of the electromagnetically induced transparency resonance. Then we present the concept of a reversible transfer of the quantum state of two internally-translationally entangled fragments, formed by molecular dissociation, to a photon pair. Our scheme allows, in principle, high-fidelity state transfer from the entangled dissociated fragments to light, thereby producing a highly correlated photon pair. This process can be followed by its reversal at a distant node of a quantum network resulting in the recreation of the original two-fragment entangled state. The proposed schemes may have advantageous applications in quantum teleportation, cryptography, and quantum computation.

Paper Details

Date Published: 3 February 2004
PDF: 11 pages
Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); doi: 10.1117/12.504756
Show Author Affiliations
Gershon Kurizki, Weizmann Institute of Science (Israel)
Inbal Friedler, Weizmann Institute of Science (Israel)
David Petrosyan, Institute of Electronic Structure, FORTH (Greece)

Published in SPIE Proceedings Vol. 5161:
Quantum Communications and Quantum Imaging
Ronald E. Meyers; Yanhua Shih, Editor(s)

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