Casimir-Polder potential in the presence of a Fock state

Haug, T., Buhmann, S. Y. and Bennett, R. (2019) Casimir-Polder potential in the presence of a Fock state. Physical Review A: Atomic, Molecular and Optical Physics, 99(1), 012508. (doi: 10.1103/PhysRevA.99.012508)

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Atom-surface forces using excited states have a host of compelling applications, including repulsive and lateral forces. However, such states can be fragile and difficult to prepare. Here we report an explicit normal-mode based calculation of the Casimir-Polder potential between a ground-state atom and a nondispersive surface in the presence of an external quantized field. The potential we derive shares some features with that of excited-state Casimir-Polder forces even though we consider a ground-state atom. Our work provides a physically transparent and intuitive picture of driven Casimir-Polder potentials, as well as expanding on previous investigations by providing analytic results that fully include retardation, as well as being applicable for any choice of mutual alignment of the atom's dipole moment, the external field, and the surface normal.Haug

Item Type:Articles
Glasgow Author(s) Enlighten ID:Bennett, Dr Robert
Authors: Haug, T., Buhmann, S. Y., and Bennett, R.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review A: Atomic, Molecular and Optical Physics
Publisher:American Physical Society
ISSN (Online):1094-1622
Published Online:14 January 2019

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