Abstract
We introduce multiplexed atom-cavity quantum electrodynamics with an atomic ensemble coupled to a single optical cavity mode. Multiple Raman dressing beams establish cavity-coupled spin-wave excitations with distinctive spatial profiles. Experimentally, we demonstrate the concept by observing spin-wave vacuum Rabi splittings, selective superradiance, and interference in the cavity-mediated interactions of two spin waves. We highlight that the current experimental configuration allows rapid, interchangeable cavity coupling to 4 profiles with an overlap parameter of less than 10%, enough to demonstrate, for example, a quantum repeater network simulation in the cavity. With further improvements to the optical multiplexing setup, we infer the ability to access more than independent spin-wave profiles.
- Received 14 August 2019
DOI:https://doi.org/10.1103/PhysRevLett.123.263601
© 2019 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Scaling up Storage of Quantum Information
Published 24 December 2019
Researchers demonstrate a method for storing quantum information by “painting” spin-wave patterns onto an ensemble of atoms.
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