Quantum electrodynamic formulation of the Josephson tunnelling theory

作者：A. Widom, G. Megaloudis, Terrence D. Clark, Robert J. Prance, Helen Prance · 发表于：Journal of Physics A Mathematical and General · 年份：1983 · DOI：10.1088/0305-4470/16/1/006 · 被引用次数：2 · 研究领域：Quantum and electron transport phenomena、Mechanical and Optical Resonators、Physics of Superconductivity and Magnetism

The local ground state polarisation (complex) Schwinger Lagrangian is given corresponding to the Josephson theory of tunnelling in a junction capacitor. In the quantum electrodynamics theory there are two regimes of interest: (i) for voltages small on the scale of the gap mod eV mod <2 Delta , the motion is that of a 'quantum pendulum' with no dissipative damping; (ii) for voltages large on the scale of the gap mod eV mod >2 Delta , a finite shunt conductance is 'turned on' describing the dielectric breakdown of the junction capacitor.