Observation of Berry's Phase in a Solid State Qubit

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dc.creatorLeek, P. J.
dc.creatorFink, J. M.
dc.creatorBlais, A.
dc.creatorBianchetti, R.
dc.creatorGöppl, M.
dc.creatorGambetta, J. M.
dc.creatorSchuster, D. I.
dc.creatorFrunzio, L.
dc.creatorSchoelkopf, R. J.
dc.creatorWallraff, A.
dc.date2007-11-01
dc.date.accessioned2026-07-07T08:50:46Z
dc.date.available2026-07-07T08:50:46Z
dc.descriptionIn quantum information science, the phase of a wavefunction plays an important role in encoding information. While most experiments in this field rely on dynamic effects to manipulate this information, an alternative approach is to use geometric phase, which has been argued to have potential fault tolerance. We demonstrate the controlled accumulation of a geometric phase, Berry's phase, in a superconducting qubit, manipulating the qubit geometrically using microwave radiation, and observing the accumulated phase in an interference experiment. We find excellent agreement with Berry's predictions, and also observe a geometry dependent contribution to dephasing.
dc.description5 pages, 4 figures, version with high resolution figures available at http://qudev.ethz.ch/content/science/PubsPapers.html
dc.identifierhttps://arxiv.org/abs/0711.0218
dc.identifierhttp://arxiv.org/abs/0711.0218
dc.identifierScience 318, 1889 (2007)
dc.identifierdoi:10.1126/science.1149858
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144712
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.subjectQuantum Physics
dc.titleObservation of Berry's Phase in a Solid State Qubit
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