Strong coupling of dipole trapped atomic ensembles to a ring cavity

Fuente: arXiv
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Autori principali: Olney, T., Naniyil, V., Boyer, V., Goldwin, J., Deb, A. B.
Natura: Preprint
Pubblicazione: 2025
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author Olney, T.
Naniyil, V.
Boyer, V.
Goldwin, J.
Deb, A. B.
author_facet Olney, T.
Naniyil, V.
Boyer, V.
Goldwin, J.
Deb, A. B.
contents Cavity quantum electrodynamics systems using atoms in resonant optical cavities are central elements of many applications such as quantum networks and quantum-enhanced sensing. We present a novel experimental setup that achieves strong spatial mode-matching between a resonant mode of a triangular ring resonator and an ensemble of ultracold atoms trapped in an optical dipole trap. We realise a large-volume, 0.5\,mK deep cavity-assisted optical dipole trap from a laser beam of modest power locked to a resonant mode of the cavity through the intracavity power build-up effect, allowing efficient loading of the trap from a magneto-optical trap. We observe dipole trapping of atoms through the vacuum Rabi splitting of the transmission spectrum of a weak probe beam near resonant with the cavity, which demonstrates collective strong coupling of the ensemble of atoms to the cavity after the magneto-optical trap is turned off. The work paves the way for a highly suitable platform for cavity-assisted quantum sensing of magnetic and electric fields.
format Preprint
id arxiv_https___arxiv_org_abs_2503_18925
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Strong coupling of dipole trapped atomic ensembles to a ring cavity
Olney, T.
Naniyil, V.
Boyer, V.
Goldwin, J.
Deb, A. B.
Atomic Physics
Cavity quantum electrodynamics systems using atoms in resonant optical cavities are central elements of many applications such as quantum networks and quantum-enhanced sensing. We present a novel experimental setup that achieves strong spatial mode-matching between a resonant mode of a triangular ring resonator and an ensemble of ultracold atoms trapped in an optical dipole trap. We realise a large-volume, 0.5\,mK deep cavity-assisted optical dipole trap from a laser beam of modest power locked to a resonant mode of the cavity through the intracavity power build-up effect, allowing efficient loading of the trap from a magneto-optical trap. We observe dipole trapping of atoms through the vacuum Rabi splitting of the transmission spectrum of a weak probe beam near resonant with the cavity, which demonstrates collective strong coupling of the ensemble of atoms to the cavity after the magneto-optical trap is turned off. The work paves the way for a highly suitable platform for cavity-assisted quantum sensing of magnetic and electric fields.
title Strong coupling of dipole trapped atomic ensembles to a ring cavity
topic Atomic Physics
url https://arxiv.org/abs/2503.18925