Interaction of a single-photon wave packet with an excited atom

Interaction of a single-photon wave packet with an excited atom

The interaction of a single-photon wave packet with an initially excited two-level atom in free space is studied in semiclassical and quantum approaches. It is shown that the final state of the field does not contain doubly occupied modes. The process of the atom's transition to the ground stat...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-03, Vol.85 (3), Article 033816
1. Verfasser: Elyutin, P. V.
Format: Artikel
Sprache:eng
Schlagworte:
Deceleration
Deviation
Emittance
Excitation
Ground state
Line shape
Photons
Wave packets
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description The interaction of a single-photon wave packet with an initially excited two-level atom in free space is studied in semiclassical and quantum approaches. It is shown that the final state of the field does not contain doubly occupied modes. The process of the atom's transition to the ground state may be accelerated, decelerated, or even reversed by the incoming photon, depending on parameters. The spectrum of emitted radiation is close to the sum of the spectrum of the incoming single-photon wave packet and the natural line shape, with small and complicated deviations.
doi_str_mv 10.1103/PhysRevA.85.033816
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1094-1622
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source American Physical Society Journals
subjects Deceleration
Deviation
Emittance
Excitation
Ground state
Line shape
Photons
Wave packets
title Interaction of a single-photon wave packet with an excited atom
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