Generating Entangled Two-Photon States with Coincident Frequencies

Vittorio Giovannetti, Lorenzo Maccone, Jeffrey H. Shapiro, and Franco N. C. Wong
Phys. Rev. Lett. 88, 183602 – Published 17 April 2002
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Abstract

It is shown that parametric down-conversion, with a short-duration pump pulse and a long nonlinear crystal that is appropriately phase matched, can produce a frequency-entangled biphoton state whose individual photons are coincident in frequency. Quantum interference experiments which distinguish this state from the familiar time-coincident biphoton state are described.

  • Received 26 September 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.183602

©2002 American Physical Society

Authors & Affiliations

Vittorio Giovannetti, Lorenzo Maccone, Jeffrey H. Shapiro, and Franco N. C. Wong

  • Massachusetts Institute of Technology, Research Laboratory of Electronics, Cambridge, Massachusetts 02139

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Issue

Vol. 88, Iss. 18 — 6 May 2002

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