Quantum dissociation of a vortex-antivortex pair in a long Josephson junction

Fistul M, Wallraff A, Koval Y, Lukashenko O, Malomed B, Ustinov A (2003)


Publication Language: English

Publication Type: Journal article, Letter

Publication year: 2003

Journal

Publisher: American Physical Society

Book Volume: 91

Pages Range: 257004

URI: http://www.fluxongroup.physik.uni-erlangen.de/publications/2003/Fistul-PRL-2003.pdf

Abstract

The experimental and theoretical study of the thermal and quantum dissociation of a single vortex-antivortex (VAV pair) in a long josephson junction was presented. A pinning potential controlled by external magnetic field and bias current was used in the confinement of VAV pair. The dissociation of the pinned VAV pair resulted in the junction's switching from the superconducting to the resistive state. The obtained thermal and field dependence of the switching current distribution was in agreement with the analysis. At a temperature of about 100 mK, the crossover from the thermal to the macroscopic quantum tunneling dissociation mechanism was observed.

Authors with CRIS profile

Involved external institutions

How to cite

APA:

Fistul, M., Wallraff, A., Koval, Y., Lukashenko, O., Malomed, B., & Ustinov, A. (2003). Quantum dissociation of a vortex-antivortex pair in a long Josephson junction. Physical Review Letters, 91, 257004.

MLA:

Fistul, Mikhail, et al. "Quantum dissociation of a vortex-antivortex pair in a long Josephson junction." Physical Review Letters 91 (2003): 257004.

BibTeX: Download