Coherent effects under suppressed spontaneous emission |
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| Authors: | VI Yukalov |
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| Institution: | (1) Bogolubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna 141980, Russia and Instituto de Fisica de S ao Carlos, Universidade de S ao Paulo, Caixa Postal 369, S ao Carlos, S ao Paulo 13560-970, Brazil, BR |
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| Abstract: | An ensemble of resonance atoms is considered, which are doped into a medium with well developed polariton effect, when in
the spectrum of polariton states there is a band gap. If an atom with a resonance frequency inside the polariton gap is placed
into the medium, the atomic spontaneous emission is suppressed. However, a system of resonance atoms inside the polariton
gap can radiate when their coherent interaction is sufficiently strong. Thus the suppression of spontaneous emission for a
single atom can be overcome by a collective of atoms radiating coherently. Conditions when such collective effects can appear
and their dynamics are analysed.
Received 7 June 2000 |
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