The Quantum Geometric Phase between Orthogonal States

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dc.creatorWong, Hon Man
dc.creatorCheng, Kai Ming
dc.creatorChu, M. -C.
dc.date2004-10-07
dc.date.accessioned2026-07-07T06:11:03Z
dc.date.available2026-07-07T06:11:03Z
dc.descriptionWe show that the geometric phase between any two states, including orthogonal states, can be computed and measured using the notion of projective measurement, and we show that a topological number can be extracted in the geometric phase change in an infinitesimal loop near an orthogonal state. Also, the Pancharatnam phase change during the passage through an orthogonal state is shown to be either $π$ or zero (mod $2π$). All the off-diagonal geometric phases can be obtained from the projective geometric phase calculated with our generalized connection.
dc.identifierhttps://arxiv.org/abs/quant-ph/0410053
dc.identifierhttp://arxiv.org/abs/quant-ph/0410053
dc.identifierPhys. Rev. Lett. 94, 070406 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.070406
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92424
dc.subjectQuantum Physics
dc.titleThe Quantum Geometric Phase between Orthogonal States
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