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dc.contributor.authorKulik, Igor O.en_US
dc.date.accessioned2016-02-08T10:28:27Z
dc.date.available2016-02-08T10:28:27Z
dc.date.issued2003en_US
dc.identifier.issn1300-0101
dc.identifier.urihttp://hdl.handle.net/11693/24378
dc.description.abstractThe paper describes persistent (also termed "permanent", or "non-decaying") currents in mesoscopic metallic and macromolecular rings, cylinders and networks. The current arises as a response of system to Aharonov-Bohm flux threading the conducting loop and does not require external voltage to support the current. Magnitude of the current is periodic function of magnetic flux with a period of normal-metal flux quantum Φ 0 = hc/e. Spontaneous persistent currents arise in regular macromolecular structure without the Aharonov-Bohm flux provided the azimuthal periodicity of the ring is insured by strong coupling to periodic background (a "substrate"), otherwise the system will undergo the Peierls transition arrested at certain flux value smaller than Φ 0. Extremely small (nanoscopic, macromolecular) loop with three localization sites at flux Φ = Φ 0/2 develops a Λ-shaped energy configuration suitable to serve as a qubit, as well as at the same as a "qugate" (quantum logic gate) supporting full set of quantum transitions required for universal quantum computation. The difference of the Aharonov-Bohm qubit from another suggested condensed-matter quantum computational tools is in the radiation free couplings in a qubit supporting the scalable, long-lived quantum computation.en_US
dc.language.isoEnglishen_US
dc.source.titleTurkish Journal of Physicsen_US
dc.subjectElectron scatteringen_US
dc.subjectElectron transitionsen_US
dc.subjectMagnetic fluxen_US
dc.subjectMagnetizationen_US
dc.subjectMolecular structureen_US
dc.subjectAharonov-Bohm flux threadingen_US
dc.subjectAzimuthal periodicityen_US
dc.subjectMacromolecular ringen_US
dc.subjectMacromolecular structureen_US
dc.subjectMetallic ringen_US
dc.subjectQuantum computationen_US
dc.subjectQuantum transitionen_US
dc.subjectQuantum theoryen_US
dc.titlePersistent currents in mesoscopic loops and networksen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.spage395en_US
dc.citation.epage417en_US
dc.citation.volumeNumber27en_US
dc.citation.issueNumber5en_US
dc.publisherTÜBİTAKen_US
dc.contributor.bilkentauthorKulik, Igor O.en_US


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