Spontaneous formation of a pi soliton in a superconducting wire with an odd number of electrons

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dc.creatorKwon, Hyok-Jon
dc.creatorYakovenko, Victor M.
dc.date2002-04-01
dc.date2002-06-07
dc.date.accessioned2026-07-07T07:48:19Z
dc.date.available2026-07-07T07:48:19Z
dc.descriptionWe consider a one-dimensional superconducting wire where the total number of electrons can be controlled in the Coulomb blockade regime. We predict that a pi soliton (kink) will spontaneously form in the system when the number of electron is odd, because this configuration has a lower energy. If the wire with an odd number of electrons is closed in a ring, the phase difference on the two sides of the soliton will generate a supercurrent detectable by SQUID. The two degenerate states with the current flowing clockwise or counterclockwise can be utilized as a qubit.
dc.description4 pages, 1 figure, RevTeX 4. Version 2: minor revisions, as accepted to PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0204033
dc.identifierhttp://arxiv.org/abs/cond-mat/0204033
dc.identifierPhys. Rev. Lett. 89, 017002 (2002)
dc.identifierdoi:10.1103/PhysRevLett.89.017002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/124456
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleSpontaneous formation of a pi soliton in a superconducting wire with an odd number of electrons
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