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Designing Quantum Memories with Embedded Control: Photonic Circuits for Autonomous Quantum Error Correction

Source: Phys. Rev. Lett. 105, 040502 (2010); doi:10.1103/PhysRevLett.105.040502

Published 22 July 2010

PACS
  • 03.67.Pp
    Quantum error correction and other methods for protection against decoherence
  • 02.30.Yy
    Control theory
  • 03.65.Yz
    Decoherence; open systems; quantum statistical methods
  • 42.50.Pq
    Cavity quantum electrodynamics; micromasers
  • YEAR: 2010
PUBLICATION DATA
Publisher:
AIP is a member of CrossRef APS
Joseph Kerckhoff,1 Hendra I. Nurdin,1,2 Dmitri S. Pavlichin,1 and Hideo Mabuchi1
1Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA
2Department of Information Engineering, The Australian National University, Canberra, ACT 0200, Australia
We propose an approach to quantum error correction based on coding and continuous syndrome readout via scattering of coherent probe fields, in which the usual steps of measurement and discrete restoration are replaced by direct physical processing of the probe beams and coherent feedback to the register qubits. Our approach is well matched to physical implementations that feature solid-state qubits embedded in planar electromagnetic circuits, providing an autonomous and “on-chip” quantum memory design requiring no external clocking or control logic. ©2010 The American Physical Society
History: Received 1 July 2009; revised 24 March 2010; published 22 July 2010
Permalink: http://link.aps.org/abstract/PRL/v105/e040502
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