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  1. No Access

    Article

    Broken Gauge Symmetry in Macroscopic Quantum Circuits

    In this paper, we discuss the macroscopic quantum behavior of simple superconducting circuits. Starting from a Lagrangian for electromagnetic field with broken gauge symmetry, we construct a quantum circuit mo...

    J. F. Ralph, T. D. Clark, R. J. Prance, H. Prance, J. Diggins in Foundations of Physics (1998)

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    Chapter

    Quantum Electrodynamics in Superconducting Circuits

    We discuss the appearence of quantum electrodynamic effects in superconducting circuits. We concentrate on one simple system; a thick superconducting ring containing a single Josephson weak link. We construct ...

    J. F. Ralph, R. Whiteman, J. Diggins… in Electron Theory and Quantum Electrodynamics (1997)

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    Chapter

    Observation of Quantum Jumps in Squid Rings

    In this paper we describe an experimental technique which we have used to probe the low lying energy levels of a quantum mechanical SQUID ring and to observe transitions between these levels.

    R. J. Prance, R. Whiteman, T. D. Clark… in Quantum Communications and Measurement (1995)