Energy-level quantization in the zero-voltage state of a current-biased Josephson junction
Abstract
We report the first observation of quantized energy levels for a macroscopic variable, namely the phase difference across a current-biased Josephson junction in its zero-voltage state. The position of these energy levels is in quantitative agreement with a quantum mechanical calculation based on parameters of the junction that are measured in the classical regime.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1985
- DOI:
- 10.1103/PhysRevLett.55.1543
- Bibcode:
- 1985PhRvL..55.1543M
- Keywords:
-
- Energy Levels;
- Josephson Junctions;
- Quantum Mechanics;
- Bias;
- Microwave Frequencies;
- Resonance;
- Schroedinger Equation;
- Solid-State Physics;
- 03.65.-w;
- 05.30.-d;
- 74.50.+r;
- Quantum mechanics;
- Quantum statistical mechanics;
- Tunneling phenomena;
- point contacts weak links Josephson effects