# Directional spontaneous emission and lateral Casimir-Polder force on an atom close to a nanofiber

@article{Scheel2015DirectionalSE,
title={Directional spontaneous emission and lateral Casimir-Polder force on an atom close to a nanofiber},
author={S. Scheel and Stefan Yoshi Buhmann and Christoph Clausen and Philipp Schneeweiss},
journal={Physical Review A},
year={2015},
volume={92},
pages={043819}
}
• Published 6 May 2015
• Physics
• Physical Review A
We study the spontaneous emission of an excited atom close to an optical nanofiber and the resulting scattering forces. For a suitably chosen orientation of the atomic dipole, the spontaneous emission pattern becomes asymmetric and a resonant Casimir-Polder force parallel to the fiber axis arises. For a simple model case, we show that such a lateral force is due to the interaction of the circularly oscillating atomic dipole moment with its image inside the material. With the Casimir\char21…
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