Bulletin of the American Physical Society
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 67, Number 7
Monday–Friday, May 30–June 3 2022; Orlando, Florida
Session N01: Poster Session II (4:00-6:00pm, EDT)
4:00 PM,
Wednesday, June 1, 2022
Room: Grand Ballroom C
Abstract: N01.00110 : Progress towards an efficient quantum network with rubidium atoms*
Presenter:
Akbar Safari
(University of Wisconsin-Madison)
Authors:
Akbar Safari
(University of Wisconsin-Madison)
Christopher B Young
(University of Wisconsin - Madison)
Preston Huft
(University of Wisconsin - Madison)
Jin Zhang
(University of Wisconsin-Madison)
Eunji Oh
(University of Wisconsin-Madison)
Ravi Chinnarasu
(University of Wisconsin-Madison)
Mark Saffman
(University of Wisconsin - Madison)
that enables distributed quantum computation and sensing based on a modular architecture.
Here, we report progress towards achieving such a network based on remote entanglement
between two Rb atoms. In order to achieve a high generation rate of atom-atom entanglement,
we maximize the collection efficiency of the photons scattered by the atoms. We discuss an
asymmetric optical cavity and compare its performance with free-space geometries, i.e. lenses
and parabolic mirrors with large numerical aperture. A near-concentric cavity allows for direct
cooling and trapping of the atoms inside the cavity and enhances the photon collection
efficiency significantly. We estimate that a remote entanglement generation rate of more than
1000 (1/s) is feasible with the proposed scheme.
In addition to maximizing the rate, we are building the core of the setup on a chip by using
millimeter-size optics. With the pre-aligned optics on the chip and fiber-coupled out of the
vacuum chamber, the assembly can function as a plug-and-play quantum repeater node, an
essential tool to establish a fully quantum network
*Work supported by the NSF QLCI-HQAN center. This material is based upon work supported by the U.S. Department of Energy Office of Science National Quantum Information Science Research Centers.
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