Tunable single emitter-cavity coupling strength through waveguide-assisted energy quantum transfer.
Light Sci Appl
; 13(1): 171, 2024 Jul 18.
Article
en En
| MEDLINE
| ID: mdl-39025842
ABSTRACT
The emitter-cavity strong coupling manifests crucial significance for exploiting quantum technology, especially in the scale of individual emitters. However, due to the small light-matter interaction cross-section, the single emitter-cavity strong coupling has been limited by its harsh requirement on the quality factor of the cavity and the local density of optical states. Herein, we present a strategy termed waveguide-assisted energy quantum transfer (WEQT) to improve the single emitter-cavity coupling strength by extending the interaction cross-section. Multiple ancillary emitters are optically linked by a waveguide, providing an indirect coupling channel to transfer the energy quantum between target emitter and cavity. An enhancement factor of coupling strength g Ì / g > 10 can be easily achieved, which dramatically release the rigorous design of cavity. As an extension of concept, we further show that the ancillae can be used as controlling bits for a photon gate, opening up new degrees of freedom in quantum manipulation.
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Light Sci Appl
Año:
2024
Tipo del documento:
Article
País de afiliación:
China