Device-tailored model-free error correction in quantum processors

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United States of America Patent

PATENT NO 11689223
APP PUB NO 20200274554A1
SERIAL NO

16647188

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Abstract

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Model-free error correction in quantum processors is provided, allowing tailoring to individual devices. In various embodiments, a quantum circuit is configured according to a plurality of configuration parameters. The quantum circuit comprises an encoding circuit and a decoding circuit. Each of a plurality of training states is input to the quantum circuit. The encoding circuit is applied to each of the plurality of training states and to a plurality of input syndrome qubits to produce encoded training states. The decoding circuit is applied to each of the encoded training states to determine a plurality of outputs. A fidelity of the quantum circuit is measured for the plurality of training states based on the plurality of outputs. The fidelity is provided to a computing node. The computing node determines a plurality of optimized configuration parameters. The optimized configuration parameters maximize the accuracy of the quantum circuit for the plurality of training states.

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Patent Owner(s)

Patent OwnerAddress
PRESIDENT AND FELLOWS OF HARVARD COLLEGE17 QUINCY STREET CAMBRIDGE MA 02138

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aspuru-Guzik, Alan Cambridge, US 25 232
Cao, Yudong Cambridge, US 34 201
Dallaire-Demers, Pierre-Luc Cambridge, US 8 56
Johnson, Peter D Cambridge, US 42 769
Olson, Jonathan P Cambridge, US 12 232
Romero, Fontalvo Jhonathan Cambridge, US 1 1

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