Nonlinear theory of laser-induced dipolar interactions in arbitrary geometry

Ephraim Shahmoon and Gershon Kurizki
Phys. Rev. A 89, 043419 – Published 18 April 2014

Abstract

Polarizable dipoles, such as atoms, molecules, or nanoparticles, subject to laser radiation may attract or repel each other. We derive a general formalism in which such laser-induced dipole-dipole interactions (LIDDIs) in any geometry and for any laser strength are described in terms of the resonant dipole-dipole interaction (RDDI) between dipoles dressed by the laser. This approach provides a simple route towards the analysis of LIDDI in a general geometry. Our general results reveal LIDDI effects due to nonlinear dipolar response to the laser, previously unaccounted for. The origin of these nonlinear effects is discussed. Our general formalism is illustrated for LIDDI between atoms in a cavity.

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  • Received 6 November 2013
  • Revised 5 March 2014

DOI:https://doi.org/10.1103/PhysRevA.89.043419

©2014 American Physical Society

Authors & Affiliations

Ephraim Shahmoon and Gershon Kurizki

  • Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel

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Issue

Vol. 89, Iss. 4 — April 2014

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