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.
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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.
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