A Device for Realizing Error Correction with a Distance-3 Surface Code using Superconducting Circuits
ORAL
Abstract
Quantum error correction is a key challenge in the field of quantum computing and a next milestone to be passed is to demonstrate the correction of bit- and phase-flip errors on a logical qubit. A promising approach to quantum error correction is the surface code, where physical qubits are arranged into a 2D grid. For a distance-3 code, the smallest distance that can correct single-qubit bit- and phase-flip errors, the surface code uses 9 data qubits for encoding the logical state and 8 ancilla qubits for performing measurements of the error syndromes. In this talk, we discuss the design and realization of a 17 qubit superconducting quantum device used to implement the distance-3 surface code. We characterized the device performance of the elementary operations needed to implement quantum error correction, including single and two-qubit gates, qubit readout and weight-2 and weight-4 stabilizer measurements.
*We acknowledge financial support by ODNI, IARPA, via the US ARO grant W911NF-16-1-0071, by SNFS NCCR QSIT, by the EU Flagship H2020-FETFLAG-2018-03 project 820363 OpenSuperQ, by the SNFS R'Equip grant 206021-170731 and by ETH Zurich.
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Presenters
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Christian Kraglund Andersen
- ETH Zurich