2001/06/14 by H. Prance, T. D. Clark, R. Whiteman +6 · 1 citation
Physics and Astronomy · #Mechanical and Optical Resonators #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.supr-con
paper · pdf · doi:10.1103/physreve.64.016208
published as Phys. Rev. E 64, 016208 (2001) · 9 pages, 8 figures, Uploaded as implementing a policy of arXiving old papers
openalex publication_date 2001/06/14 · arxiv created 2004/11/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper we present experimental data on the frequency domain response of a superconducting-quantum-interference-device ring (a Josephson weak link enclosed by a thick superconducting ring) coupled to a radio frequency tank circuit resonator. We show that with the ring weakly hysteretic the resonance line shape of this coupled system can display opposed fold bifurcations that appear to touch (pinch off). We demonstrate that for appropriate circuit parameters these pinch off line shapes exist as solutions of the nonlinear equations of motion for the system.