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Momentum Transfer of an Atom Moving in an Optical Cavity

Zhang Jing-Tao and Xu Zhi-Zhan

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When an atom moves in an optical cavity, the total momentum of the atom does not remain constant. We study a two-level atom moving slowly in an optical cavity, and give the time dependence of its mean momentum. It is found that when the initial momentum of the atom is larger than that of the photon, the mean momentum oscillates around a value less than the initial value. But, if the initial momentum is less than the momentum of the photon, the mean momentum of the atom is greater than its initial value in most cases.


PACS

42.50.Ct Quantum description of interaction of light and matter; related experiments

03.65.Ge Solutions of wave equations: bound states

02.10.Ud Linear algebra

Subjects

Atomic and molecular physics

Mathematical physics

Optics, quantum optics and lasers

Quantum information and quantum mechanics

Dates

Issue 8 (August 2001)

Received 27 November 2000



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