Measurement of geometric phase for mixed states using single photon interferometry

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dc.creatorEricsson, Marie
dc.creatorAchilles, Daryl
dc.creatorBarreiro, Julio T.
dc.creatorBranning, David
dc.creatorPeters, Nicholas A.
dc.creatorKwiat, Paul G.
dc.date2004-12-30
dc.date.accessioned2026-07-07T06:11:53Z
dc.date.available2026-07-07T06:11:53Z
dc.descriptionGeometric phase may enable inherently fault-tolerant quantum computation. However, due to potential decoherence effects, it is important to understand how such phases arise for {\it mixed} input states. We report the first experiment to measure mixed-state geometric phases in optics, using a Mach-Zehnder interferometer, and polarization mixed states that are produced in two different ways: decohering pure states with birefringent elements; and producing a nonmaximally entangled state of two photons and tracing over one of them, a form of remote state preparation.
dc.descriptionTo appear in Phys. Rev. Lett. 4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0412216
dc.identifierhttp://arxiv.org/abs/quant-ph/0412216
dc.identifierPhys. Rev. Lett. 94, 050401 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.050401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92622
dc.subjectQuantum Physics
dc.titleMeasurement of geometric phase for mixed states using single photon interferometry
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