Directed Spontaneous Emission from an Extended Ensemble of N Atoms: Timing Is Everything

Marlan O. Scully, Edward S. Fry, C. H. Raymond Ooi, and Krzysztof Wódkiewicz
Phys. Rev. Lett. 96, 010501 – Published 3 January 2006

Abstract

A collection of N static atoms is fixed in a crystal at a low temperature and prepared by a pulse of incident radiation of wave vector k0. The N atoms are well described by an entangled Dicke-like state, in which each atom carries a characteristic phase factor exp(ik0·rj), where rj is the atomic position in the crystal. It is shown that a single photon absorbed by the N atoms will be followed by spontaneous emission in the same direction. Furthermore, phase matched emission is found when one photon is absorbed by N atoms followed by two-photon down-conversion.

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  • Received 12 September 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.010501

©2006 American Physical Society

Authors & Affiliations

Marlan O. Scully1,2,3, Edward S. Fry1,2, C. H. Raymond Ooi1,2,3, and Krzysztof Wódkiewicz4

  • 1Max-Planck-Institut für Quantenoptik, D-85748, Garching, Germany
  • 2Institute for Quantum Studies, Texas A&M University, College Station, Texas 77843-4242, USA
  • 3Princeton Institute for the Science and Technology of Materials, Princeton University, New Jersey 08544-1009, USA
  • 4Uniwersytet Warszawski, Hoża 69, PL-00-681 Warszawa, Poland

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Issue

Vol. 96, Iss. 1 — 13 January 2006

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