Aharonov-Bohm--type effect for vortices in Josephson-junction arrays
Journal Article
·
· Physical Review Letters; (USA)
- Department of Applied Physics, Delft University of Technology, 2600 GA Delft (The Netherlands)
The dynamics of a single vortex present in a ring-shaped (Corbino geometry) two-dimensional array of low-capacity Josephson junctions is studied. The vortex is treated as a macroscopic quantum particle, whose energy levels {ital E}{sub {ital n}}({ital Q}{sub 0}) are periodic functions of the externally induced gauge charge {ital Q}{sub 0} which is enclosed by the vortex, with a period 2{ital e}. This Aharonov-Bohm--type effect may manifest itself as a persistent voltage {ital V}{sub {ital s}}={ital dE}{sub 0}({ital Q}{sub 0})/{ital dQ}{sub 0} between interior and exterior contacts, or alternatively as Bloch oscillations. The relation with the Aharonov-Casher effect and the possibility for experimental observation are discussed.
- OSTI ID:
- 6723342
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:2; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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