Crossed Andreev reflection in a d-wave superconductor with two quantum point contacts

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dc.creatorTakahashi, S.
dc.creatorYamashita, T.
dc.creatorMaekawa, S.
dc.date2004-01-08
dc.date.accessioned2026-07-07T02:55:48Z
dc.date.available2026-07-07T02:55:48Z
dc.descriptionWe theoretically study the crossed Andreev reflection in a hybrid nanostructure which comprises a d-wave superconductor and two normal-metal quantum wires. When the superconductor of the (110) oriented surface is in contact with the wires parallel and placed close to each other, the Andreev bound state is formed by the crossed Andreev reflection. When the contact barrier potential is sufficiently large, two sharp peaks appear in the conductance well below the gap structure, which originate from the bonding and antibonding Andreev bound states. We propose that these Andreev bound states form a two-level quantum system (qubit).
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0401111
dc.identifierhttp://arxiv.org/abs/cond-mat/0401111
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23079
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleCrossed Andreev reflection in a d-wave superconductor with two quantum point contacts
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