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Effect of noise and modulation on the reflection of atoms from an evanescent wave

Effect of noise and modulation on the reflection of atoms from an evanescent wave We consider the reflection of cold atoms from a temporally modulated evanescent wave, with laser intensity noise, including stochastic surface adsorption. The stochastic surface adsorption is explicitly modeled by means of quantum trajectories while the effect of noise is modeled using the method of stochastic Hamiltonians. The results show that noise destroys quantum features such as interference and splitting, which is especially rapid for semiclassical states. For small noise, modulation can still produce a splitting of the atomic beam, with added dispersion resulting from heating of atoms. In order to distinguish the quantum features, a classical analysis is also presented. © 1996 The American Physical Society. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Effect of noise and modulation on the reflection of atoms from an evanescent wave

Chen, Wen-Yu; Milburn, G. J; Dyrting, S. J
Physical Review A , Volume 54 (2) – Aug 1, 1996
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Publisher
American Physical Society (APS)
Copyright
Copyright © 1996 The American Physical Society
ISSN
1094-1622
DOI
10.1103/PhysRevA.54.1510
Publisher site
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Abstract

We consider the reflection of cold atoms from a temporally modulated evanescent wave, with laser intensity noise, including stochastic surface adsorption. The stochastic surface adsorption is explicitly modeled by means of quantum trajectories while the effect of noise is modeled using the method of stochastic Hamiltonians. The results show that noise destroys quantum features such as interference and splitting, which is especially rapid for semiclassical states. For small noise, modulation can still produce a splitting of the atomic beam, with added dispersion resulting from heating of atoms. In order to distinguish the quantum features, a classical analysis is also presented. © 1996 The American Physical Society.

Journal

Physical Review A – American Physical Society (APS)

Published: Aug 1, 1996

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