Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates

In this article, we analyze the Casimir-Polder interaction of atoms with a solid grating and the repulsive interaction between the atoms and the grating in the presence of an external laser source. The Casimir-Polder potential is evaluated exactly in terms of Rayleigh reflection coefficients and via...

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Main Authors: Helmar Bender, Christian Stehle, Claus Zimmermann, Sebastian Slama, Johannes Fiedler, Stefan Scheel, Stefan Yoshi Buhmann, Valery N. Marachevsky
Format: Article
Language:English
Published: American Physical Society 2014-02-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.4.011029
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author Helmar Bender
Christian Stehle
Claus Zimmermann
Sebastian Slama
Johannes Fiedler
Stefan Scheel
Stefan Yoshi Buhmann
Valery N. Marachevsky
author_facet Helmar Bender
Christian Stehle
Claus Zimmermann
Sebastian Slama
Johannes Fiedler
Stefan Scheel
Stefan Yoshi Buhmann
Valery N. Marachevsky
author_sort Helmar Bender
collection DOAJ
description In this article, we analyze the Casimir-Polder interaction of atoms with a solid grating and the repulsive interaction between the atoms and the grating in the presence of an external laser source. The Casimir-Polder potential is evaluated exactly in terms of Rayleigh reflection coefficients and via an approximate Hamaker approach. The laser-tuned repulsive interaction is given in terms of Rayleigh transmission coefficients. The combined potential landscape above the solid grating is probed locally by diffraction of Bose-Einstein condensates. Measured diffraction efficiencies reveal information about the shape of the potential landscape in agreement with the theory based on Rayleigh decompositions.
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spelling doaj.art-f22c822c7100462d92477e3923590fe12022-12-21T20:46:37ZengAmerican Physical SocietyPhysical Review X2160-33082014-02-014101102910.1103/PhysRevX.4.011029Probing Atom-Surface Interactions by Diffraction of Bose-Einstein CondensatesHelmar BenderChristian StehleClaus ZimmermannSebastian SlamaJohannes FiedlerStefan ScheelStefan Yoshi BuhmannValery N. MarachevskyIn this article, we analyze the Casimir-Polder interaction of atoms with a solid grating and the repulsive interaction between the atoms and the grating in the presence of an external laser source. The Casimir-Polder potential is evaluated exactly in terms of Rayleigh reflection coefficients and via an approximate Hamaker approach. The laser-tuned repulsive interaction is given in terms of Rayleigh transmission coefficients. The combined potential landscape above the solid grating is probed locally by diffraction of Bose-Einstein condensates. Measured diffraction efficiencies reveal information about the shape of the potential landscape in agreement with the theory based on Rayleigh decompositions.http://doi.org/10.1103/PhysRevX.4.011029
spellingShingle Helmar Bender
Christian Stehle
Claus Zimmermann
Sebastian Slama
Johannes Fiedler
Stefan Scheel
Stefan Yoshi Buhmann
Valery N. Marachevsky
Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
Physical Review X
title Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
title_full Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
title_fullStr Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
title_full_unstemmed Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
title_short Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
title_sort probing atom surface interactions by diffraction of bose einstein condensates
url http://doi.org/10.1103/PhysRevX.4.011029
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