The Library
Experimental accreditation of outputs of noisy quantum computers
Tools
Ferracin, Samuele, Merkel, Seth T., McKay, David and Datta, Animesh (2021) Experimental accreditation of outputs of noisy quantum computers. Physical Review A (Atomic, Molecular and Optical Physics) , 104 (4). 042603 . doi:10.1103/PhysRevA.104.042603 ISSN 1050-2947.
|
PDF
WRAP-Experimental-accreditation-outputs-noisy-computers-2021.pdf - Published Version - Requires a PDF viewer. Download (2048Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevA.104.042603
Abstract
We provide and experimentally demonstrate an accreditation protocol that upper bounds the variation distance between noisy and noiseless probability distributions of the outputs of arbitrary quantum computations. We accredit the outputs of 24 quantum circuits executed on programmable superconducting hardware, ranging from depth-9 circuits on 10 qubits to depth-21 circuits on 4 qubits. Our protocol requires implementing the “target” quantum circuit along with a number of random Clifford circuits and subsequently postprocessing the outputs of these Clifford circuits. Importantly, the number of Clifford circuits is chosen to obtain the bound with the desired confidence and accuracy and is independent of the size and nature of the target circuit. We thus demonstrate a practical and scalable method of ascertaining the correctness of the outputs of arbitrary-sized noisy quantum computers—the ultimate arbiter of the utility of the computer itself.
Item Type: | Journal Article | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software Q Science > QC Physics |
||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
Library of Congress Subject Headings (LCSH): | Quantum computers, Quantum computing, Quantum physics | ||||||||||||
Journal or Publication Title: | Physical Review A (Atomic, Molecular and Optical Physics) | ||||||||||||
Publisher: | American Physical Society | ||||||||||||
ISSN: | 1050-2947 | ||||||||||||
Official Date: | 11 October 2021 | ||||||||||||
Dates: |
|
||||||||||||
Volume: | 104 | ||||||||||||
Number: | 4 | ||||||||||||
Article Number: | 042603 | ||||||||||||
DOI: | 10.1103/PhysRevA.104.042603 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Copyright Holders: | ©2021 American Physical Society | ||||||||||||
Date of first compliant deposit: | 19 October 2021 | ||||||||||||
Date of first compliant Open Access: | 20 October 2021 | ||||||||||||
RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year