Fault-tolerant measurement-based quantum computing with continuous-variable cluster states

Menicucci, N 2014, 'Fault-tolerant measurement-based quantum computing with continuous-variable cluster states', Physical Review Letters, vol. 112, no. 12, 120504, pp. 1-5.


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Collection: Journal Articles

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Title Fault-tolerant measurement-based quantum computing with continuous-variable cluster states
Author(s) Menicucci, N
Year 2014
Journal name Physical Review Letters
Volume number 112
Issue number 12
Article Number 120504
Start page 1
End page 5
Total pages 5
Publisher American Physical Society
Abstract A long-standing open question about Gaussian continuous-variable cluster states is whether they enable fault-tolerant measurement-based quantum computation. The answer is yes. Initial squeezing in the cluster above a threshold value of 20.5 dB ensures that errors from finite squeezing acting on encoded qubits are below the fault-tolerance threshold of known qubit-based error-correcting codes. By concatenating with one of these codes and using ancilla-based error correction, fault-tolerant measurement-based quantum computation of theoretically indefinite length is possible with finitely squeezed cluster states.
Subject Quantum Information, Computation and Communication
Keyword(s) Cluster state
Continuous variables
Encoded qubits
Error correcting code
Fault-tolerant
Measurement-based
Measurement-based quantum computation
Quantum Computing
DOI - identifier 10.1103/PhysRevLett.112.120504
Copyright notice © 2014 American Physical Society
ISSN 0031-9007
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