Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session C42: Applications of Noisy Intermediate Scale Quantum Computers I
2:30 PM–5:30 PM,
Monday, March 4, 2019
BCEC
Room: 210A
Sponsoring
Unit:
DQI
Chair: Timothy Hsieh, Perimeter Institute for Theoretical Physics
Abstract: C42.00010 : Marginals optimization procedure: algorithmically extending the capability of near-term quantum computers
4:42 PM–4:54 PM
Presenter:
Peter Johnson
(Zapata Computing)
Authors:
Peter Johnson
(Zapata Computing)
Max Radin
(Zapata Computing)
Amara Katabarwa
(Zapata Computing)
Jhonathan Romero
(Zapata Computing)
Yudong Cao
(Zapata Computing)
Variational quantum algorithms have yet to outperform state-of-the-art classical optimization techniques. While improving quantum devices is necessary to achieve this so-called “quantum advantage”, improving quantum algorithms also brings us closer towards this goal. Based on a simple observation about the role of the quantum computer in these algorithms, we have developed a technique which algorithmically extends the depth of a quantum computer. We describe the marginals optimization procedure for improving variational quantum algorithms and demonstrate its performance in simulations and small experiments.
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