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Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces

Jones, Ryan; Needham, Jemma A.; Lesanovsky, Igor; Intravaia, Francesco; Olmos, Beatriz

Authors

Ryan Jones

Jemma A. Needham

Francesco Intravaia



Abstract

We study how the radiative properties of a dense ensemble of atoms can be modified when they are placed near or between metallic or dielectric surfaces. If the average separation between the atoms is comparable or smaller than the wavelength of the scattered photons, the coupling to the radiation field induces long-range coherent interactions based on the interatomic exchange of virtual photons. Moreover, the incoherent scattering of photons back to the electromagnetic field is known to be a many-body process, characterized by the appearance of superradiant and subradiant emission modes. By changing the radiation field properties, in this case by considering a layered medium where the atoms are near metallic or dielectric surfaces, these scattering properties can be dramatically modified. We perform a detailed study of these effects, with focus on experimentally relevant parameter regimes. We finish with a specific application in the context of quantum information storage,where the presence of a nearby surface is shown to increase the storage time of an atomic excitation that is transported across a one-dimensional chain.

Journal Article Type Article
Publication Date May 29, 2018
Journal Physical Review A
Print ISSN 2469-9926
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 97
Issue 5
Article Number 053841
APA6 Citation Jones, R., Needham, J. A., Lesanovsky, I., Intravaia, F., & Olmos, B. (2018). Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces. Physical Review A, 97(5), https://doi.org/10.1103/PhysRevA.97.053841
DOI https://doi.org/10.1103/PhysRevA.97.053841
Publisher URL https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.053841
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information ©2018 American Physical Society

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf


surfaces_paper.pdf (8.3 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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