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Quantum Optics$
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John Garrison and Raymond Chiao

Print publication date: 2008

Print ISBN-13: 9780198508861

Published to Oxford Scholarship Online: September 2008

DOI: 10.1093/acprof:oso/9780198508861.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 18 October 2021

Cavity quantum electrodynamics

Cavity quantum electrodynamics

(p.381) 12 Cavity quantum electrodynamics
Quantum Optics

J. C. Garrison

R. Y. Chiao

Oxford University Press

This chapter shows that the radiative behavior of a two-level atom in free space is drastically modified when the atom is confined to a cavity with dimensions comparable to the emitted wavelength. In the latter situation the photon cannot escape to infinity, but is instead reflected from the cavity walls to re-excite the atom. In the resonant wave approximation, the evolution of the atom-photon system in a cavity is described by the Jaynes-Cummings model. For an atom initially in the excited state, the excited-state occupation probability first collapses to an apparent steady-state value of 1/2, but later experiences a revival with oscillations around 1/2. This system has been experimentally realized by a device called a micromaser.

Keywords:   Jaynes-Cummings model, collapse, revival, micromaser

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