The Röntgen interaction and forces on dipoles in time-modulated optical fields

Sonnleitner, M. and Barnett, S. M. (2017) The Röntgen interaction and forces on dipoles in time-modulated optical fields. European Physical Journal D, 71, 336. (doi: 10.1140/epjd/e2017-80273-8)

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The Röntgen term is an often neglected contribution to the interaction between an atom and an electromagnetic field in the electric dipole approximation. In this work we discuss how this interaction term leads to a difference between the kinetic and canonical momentum of an atom which, in turn, leads to surprising radiation forces acting on the atom. We use a number of examples to explore the main features of this interaction, namely forces acting against the expected dipole force or accelerations perpendicular to the beam propagation axis.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Sonnleitner, Dr Matthias and Barnett, Professor Stephen
Authors: Sonnleitner, M., and Barnett, S. M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:European Physical Journal D
Publisher:EDP Sciences
ISSN (Online):1434-6079
Published Online:19 December 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in European Physical Journal D 71:336
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
6672319UK Quantum Technology Hub in Enhanced Quantum ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/M01326X/1S&E P&A - PHYSICS & ASTRONOMY
721291Astronomy and physics, theoretical physics and application physics / Quantum Theory. Royal Society Research Professorship.Stephen BarnettThe Royal Society (ROYSOC)RP150122S&E P&A - PHYSICS & ASTRONOMY