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 U08: Progress in Neutral-Atom Based Quantum Computing Architectures
2:00 PM–4:00 PM,
Thursday, June 2, 2022
Room: Salon 7/8
Chair: Dolev Bluvstein, Harvard University; Hannes Bernien, UChicago
Abstract: U08.00005 : Atom quantum computing in a 2D neutral Cs array*
2:48 PM–3:00 PM
Presenter:
Trent Graham
(University of Wisconsin - Madison)
Authors:
Trent Graham
(University of Wisconsin - Madison)
Yunheung Song
(University of Wisconsin - Madison)
Jacob Scott
(University of Wisconsin - Madison)
Cody Poole
(University of Wisconsin - Madison)
Linipun Phuttitarn
(University of Wisconsin - Madison)
Kais Jooya
(University of Wisconsin - Madison)
Patrick Eichler
(University of Wisconsin - Madison)
Xiaoyu Jiang
(University of Wisconsin - Madison)
Minho Kwon
(University of Wisconsin - Madison)
Brandon Grinkemeyer
(University of Wisconsin - Madison)
Matthew Ebert
(ColdQuanta, Inc.)
Josh Cherek
(ColdQuanta, Inc.)
Martin Lichtman
(ColdQuanta, Inc.)
Matthew Gillette
(ColdQuanta, Inc.)
Jonathan Gilbert
(ColdQuanta, Inc.)
David Bowman
(ColdQuanta, Inc.)
Tim Ballance
(ColdQuanta, Inc.)
Colin Campbell
(ColdQuanta, Inc.)
Edward D Dahl
(ColdQuanta, Inc.)
Ophelia Crawford
(Riverlane, Ltd.)
Nick Blunt
(Riverlane, Ltd.)
Ben Rogers
(Riverlane, Ltd.)
Tom Noel
(ColdQuanta, Inc.)
Mark Saffman
(University of Wisconsin - Madison; ColdQuanta, Inc.)
We create GHZ states with >6 qubits encoded on long lived hyperfine ground state qubits and measure their coherence times. We demonstrate phase estimation and apply this algorithm to solve a quantum chemistry problem. We also demonstrate two different hybrid quantum and classical optimization algorithms. We present results using the variational quantum eigensolver algorithm to estimate ground state energies of the Lipkin Hamiltonian. We also present results of the quantum approximate optimization algorithm applied to find the maximum cut of several graphs.
*Research supported by DARPA, NSF, and DOE.
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