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The Non-Perturbative Quantum Behaviour of a Squid Ring in a Strong Electromagnetic Field

In: Macroscopic Quantum Coherence and Quantum Computing

Author

Listed:
  • M. J. Everitt

    (University of Sussex, Physical Electronics Group, School of Engineering)

  • P. Stiffell

    (University of Sussex, Physical Electronics Group, School of Engineering)

  • J. F. Ralph

    (University of Liverpool, Department of Electrical Engineering and Electronics)

  • T. D. Clark

    (University of Sussex, Physical Electronics Group, School of Engineering)

  • A. Vourdas

    (University of Liverpool, Department of Electrical Engineering and Electronics)

  • H. Prance

    (University of Sussex, Physical Electronics Group, School of Engineering)

  • R. J. Prance

    (University of Sussex, Physical Electronics Group, School of Engineering)

Abstract

We investigate the use of a time-dependent electromagnetic field to stimulate quantum transitions in a macroscopic superconducting circuit. Using two different models for the electromagnetic field, we show that the timedependent Schrödinger equation predicts complex non-perturbative behaviour and multi-photon transitions. Moreover, we show that the strong coupling between the SQUID ring and the applied field means that this non-perturbative behaviour is relatively easy to produce.

Suggested Citation

  • M. J. Everitt & P. Stiffell & J. F. Ralph & T. D. Clark & A. Vourdas & H. Prance & R. J. Prance, 2001. "The Non-Perturbative Quantum Behaviour of a Squid Ring in a Strong Electromagnetic Field," Springer Books, in: Dmitri V. Averin & Berardo Ruggiero & Paolo Silvestrini (ed.), Macroscopic Quantum Coherence and Quantum Computing, pages 389-398, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4615-1245-5_39
    DOI: 10.1007/978-1-4615-1245-5_39
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