Strong coupling between a trapped single atom and an all-fiber cavity
Shinya Kato, Takao Aoki
TL;DR
This paper reports the realization of a fiber-based cavity QED system with a single atom in the strong coupling regime, demonstrated through vacuum Rabi splitting measurements.
Contribution
It introduces an all-fiber nanofiber Fabry-Perot cavity system achieving strong atom-cavity coupling, a significant step for fiber-integrated quantum devices.
Findings
Observation of vacuum Rabi splitting in the transmission spectrum.
Successful trapping of a single atom in the nanofiber cavity.
Achievement of strong coupling regime in an all-fiber setup.
Abstract
We demonstrate an all-fiber cavity QED system with a trapped single atom in the strong coupling regime. We use a nanofiber Fabry-Perot cavity, that is, an optical nanofiber sandwiched by two fiber-Bragg-grating mirrors. Measurements of the cavity transmission spectrum with a single atom in a state-insensitive nanofiber trap clearly reveal the vacuum Rabi splitting.
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