Observation of the Aharonov-Casher effect for vortices in Josephson-junction arrays
W. J. Elion, J. J. Wachters, L. L. Sohn, J. E. Mooij
DOI 10.1103/PhysRevLett.71.2311 · Physical Review Letters
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Abstract
We have observed quantum interference of vortices in a Josephson-junction array. When vortices cross the array along a doubly connected path, the resultant resistance oscillates periodically with an induced charge enclosed by the path. This phenomenon is a manifestation of the Aharonov-Casher effect. The period of oscillation corresponds to the single electron charge due to tunneling of quasiparticles.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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