Demonstration of Weight-Four Parity Measurements in the Surface Code Architecture
- 18 November 2016
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 117 (21), 210505
- https://doi.org/10.1103/physrevlett.117.210505
Abstract
We present parity measurements on a five-qubit lattice with connectivity amenable to the surface code quantum error correction architecture. Using all-microwave controls of superconducting qubits coupled via resonators, we encode the parities of four data qubit states in either the or the basis. Given the connectivity of the lattice, we perform a full characterization of the static interactions within the set of five qubits, as well as dynamical interactions brought along by single- and two-qubit microwave drives. The parity measurements are significantly improved by modifying the microwave two-qubit gates to dynamically remove nonideal errors.
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Funding Information
- Intelligence Advanced Research Projects Activity (W911NF-10-1-0324)
This publication has 27 references indexed in Scilit:
- State preservation by repetitive error detection in a superconducting quantum circuitNature, 2015
- Implementing a strand of a scalable fault-tolerant quantum computing fabricNature Communications, 2014
- Improved superconducting qubit coherence using titanium nitrideApplied Physics Letters, 2013
- Superconducting qubit in a waveguide cavity with a coherence time approaching 0.1 msPhysical Review B, 2012
- Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED ArchitecturePhysical Review Letters, 2011
- Protecting superconducting qubits from radiationApplied Physics Letters, 2011
- Minimizing quasiparticle generation from stray infrared light in superconducting quantum circuitsApplied Physics Letters, 2011
- Fault-Tolerant Quantum Computation with High Threshold in Two DimensionsPhysical Review Letters, 2007
- Fault-tolerant quantum computation by anyonsAnnals of Physics, 2002
- Scheme for reducing decoherence in quantum computer memoryPhysical Review A, 1995