Leggett-Garg inequality with a kicked quantum pump

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dc.creatorJordan, Andrew N.
dc.creatorKorotkov, Alexander N.
dc.creatorButtiker, Markus
dc.date2005-10-28
dc.date2006-08-10
dc.date.accessioned2026-07-07T06:45:39Z
dc.date.available2026-07-07T06:45:39Z
dc.descriptionA kicked quantum nondemolition measurement is introduced, where a qubit is weakly measured by pumping current. Measurement statistics are derived for weak measurements combined with single qubit unitary operations. These results are applied to violate a generalization of Leggett and Garg's inequality. The violation is related to the failure of the noninvasive detector assumption, and may be interpreted as either intrinsic detector backaction, or the qubit entangling the microscopic detector excitations. The results are discussed in terms of a quantum point contact kicked by a pulse generator, measuring a double quantum dot.
dc.description4 pages, 3 figures, published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0510782
dc.identifierhttp://arxiv.org/abs/cond-mat/0510782
dc.identifierPhys. Rev. Lett. 97, 026805 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.026805
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103103
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleLeggett-Garg inequality with a kicked quantum pump
dc.typetext

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