Cross-Molecular Coupling in Combined Photoassociation and Feshbach Resonances

Cross-Molecular Coupling in Combined Photoassociation and Feshbach Resonances

We model combined photoassociation and Feshbach resonances in a Bose-Einstein condensate. When the magnetic field is far-off resonance, cross coupling between the two target molecules--enabled by the shared dissociation continuum--leads to an anomalous dispersive shift in the position of laser reson...

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Veröffentlicht in:arXiv.org 2008-07
Hauptverfasser: Mackie, Matt, Fenty, Matthew, Savage, Danielle, Kesselman, Jake
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Sprache:eng
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Coupling (molecular)
Cross coupling
Dispersion
Interference
Magnetic resonance
Physics - Atomic Physics
Physics - Chemical Physics
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Fenty, Matthew
Savage, Danielle
Kesselman, Jake
description We model combined photoassociation and Feshbach resonances in a Bose-Einstein condensate. When the magnetic field is far-off resonance, cross coupling between the two target molecules--enabled by the shared dissociation continuum--leads to an anomalous dispersive shift in the position of laser resonance, as well as unprecedented elimination and enhancement of resonant photoassociation via quantum interference. For off-resonant lasers, a dispersive shift and quantum interference appear similarly in resonant three-body Feshbach losses, except that the Feshbach node is tunable with intensity.
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subjects Coupling (molecular)
Cross coupling
Dispersion
Interference
Magnetic resonance
Physics - Atomic Physics
Physics - Chemical Physics
title Cross-Molecular Coupling in Combined Photoassociation and Feshbach Resonances
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