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Download fileProspects for strongly coupled atom-photon quantum nodes
journal contribution
posted on 2019-06-06, 09:05 authored by N. Cooper, E. Da Ros, C. Briddon, V. Naniyil, Mark GreenawayMark Greenaway, L. HackermuellerWe discuss the trapping of cold atoms within microscopic voids drilled perpendicularly through the
axis of an optical waveguide. The dimensions of the voids considered are between 1 and 40 optical
wavelengths. By simulating light transmission across the voids, we fnd that appropriate shaping of the
voids can substantially reduce the associated loss of optical power. Our results demonstrate that the
formation of an optical cavity around such a void could produce strong coupling between the atoms and
the guided light. By bringing multiple atoms into a single void and exploiting collective enhancement,
cooperativities ~400 or more should be achievable. The simulations are carried out using a fnite
diference time domain method. Methods for the production of such a void and the trapping of cold
atoms within it are also discussed.
Funding
This work was supported by the Engineering and Physical Sciences Research Council [grants EP/R024111/1, EP/ M013294/1] and by the European Comission [grants 295293, 800942] (“QuILMI” and “ErBeStA”).
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