• DocumentCode
    2886003
  • Title

    Noise in superconducting qubits and spin glasses

  • Author

    Yu, Clare C. ; Zhi Chen

  • Author_Institution
    Dept. of Phys. & Astron., Univ. of California, Irvine, Irvine, CA, USA
  • fYear
    2013
  • fDate
    24-28 June 2013
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    Flux noise in superconducting quantum interference devices (SQUIDs) is produced by spins on the surface of metals. We have modeled these with Monte Carlo simulations of 2D and 3D Ising spin glasses that produce magnetization noise SM consistent with flux noise. The frequency dependence of the magnetization noise goes as 1/fα where the exponent a varies slightly with temperature. In 3D the noise power spectrum in the order parameter q goes as 1/ f1.4 at Tc. The low frequency noise in both q and the magnetization is a maximum at Tc.
  • Keywords
    Ising model; Monte Carlo methods; SQUIDs; magnetisation reversal; spin glasses; 2D Ising spin glasses; 3D Ising spin glasses; Monte Carlo simulations; SQUID; flux noise; magnetization noise; superconducting quantum interference devices; superconducting qubit noise; Glass; Low-frequency noise; Magnetization; SQUIDs; Superconducting device noise; Temperature dependence;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Noise and Fluctuations (ICNF), 2013 22nd International Conference on
  • Conference_Location
    Montpellier
  • Print_ISBN
    978-1-4799-0668-0
  • Type

    conf

  • DOI
    10.1109/ICNF.2013.6579005
  • Filename
    6579005
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2886003