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    Chapter

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

    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 tha...

    M. J. Everitt, P. Stiffell, J. F. Ralph… in Macroscopic Quantum Coherence and Quantum … (2001)

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    Article

    Solutions of the Time-Dependent Schrödinger Equation for a Two-State System

    The statistical properties of a single quantum object and an ensemble of independent such objects are considered in detail for two-level systems. Computer simulations of dynamic zero-point quantum fluctuations...

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

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    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)