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Proposal for a minimal surface code experiment

Wootton, James R. and Peter, Andreas and Winkler, János R. and Loss, Daniel. (2017) Proposal for a minimal surface code experiment. Physical Review A , 96. 032338.

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Official URL: https://edoc.unibas.ch/64117/

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Abstract

Current quantum technology is approaching the system sizes and fidelities required for quantum error correction. It is therefore important to determine exactly what is needed for proof-of-principle experiments, which will be a major step towards fault-tolerant quantum computation. Here we propose a surface code based experiment that is the smallest, both in terms of code size and circuit depth, that would allow errors to be detected and corrected for both the X and Z bases of a qubit. This requires 17 physical qubits initially prepared in a product state, on which 16 two-qubit entangling gates are applied before a final measurement of all qubits. A platform agnostic error model is applied to give some idea of the noise levels required for success. It is found that a true demonstration of quantum error correction will require fidelities for the preparation and measurement of qubits and the entangling gates to be above 99%.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Wootton, James R. and Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:1050-2947
e-ISSN:1094-1622
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:23 May 2018 07:37
Deposited On:23 May 2018 07:37

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