Spontaneous-Emission Suppression on Arbitrary Atomic Transitions

Jörg Evers and Christoph H. Keitel
Phys. Rev. Lett. 89, 163601 – Published 26 September 2002

Abstract

We propose a very simple scheme to slow down the usual exponential decay of upper state population in an atomic two-level system considerably. The scheme uses an additional possibly intense field with frequency lower than the total decay width of the atomic transition. This allows for additional decay channels with the exchange of one or more low-frequency photons during an atomic transition. These channels may then interfere with each other. The intensity and frequency of the low-frequency field are shown to act as two control parameters modifying duration and amount of the population trapping. An extension of the scheme to include transitions to more than one lower state is straightforward.

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  • Received 29 May 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.163601

©2002 American Physical Society

Authors & Affiliations

Jörg Evers* and Christoph H. Keitel

  • Theoretische Quantendynamik, Fakultät für Physik, Universität Freiburg, Hermann-Herder-Straße 3, D-79104 Freiburg, Germany

  • *Electronic address: evers@physik.uni-freiburg.de
  • Electronic address: keitel@physik.uni-freiburg.de

Comments & Replies

Comment on “Spontaneous-Emission Suppression on Arbitrary Atomic Transitions”

A. G. Kofman
Phys. Rev. Lett. 92, 159302 (2004)

Comment on “Spontaneous-Emission Suppression on Arbitrary Atomic Transitions”

P. R. Berman
Phys. Rev. Lett. 92, 159301 (2004)

Evers and Keitel Reply:

J. Evers and C. H. Keitel
Phys. Rev. Lett. 92, 159303 (2004)

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Issue

Vol. 89, Iss. 16 — 14 October 2002

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