Phase-Covariant Quantum Benchmarks

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dc.creatorCalsamiglia, J.
dc.creatorAspachs, M.
dc.creatorMunoz-Tapia, R.
dc.creatorBagan, E.
dc.date2008-07-31
dc.date.accessioned2026-07-07T13:12:55Z
dc.date.available2026-07-07T13:12:55Z
dc.descriptionWe give a quantum benchmark for teleportation and quantum storage experiments suited for pure and mixed test states. The benchmark is based on the average fidelity over a family of phase-covariant states and certifies that an experiment can not be emulated by a classical setup, i.e., by a measure-and-prepare scheme. We give an analytical solution for qubits, which shows important differences with standard state estimation approach, and compute the value of the benchmark for coherent and squeezed states, both pure and mixed.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0807.5126
dc.identifierhttp://arxiv.org/abs/0807.5126
dc.identifierPhys. Rev. A 79, 050301(R) (2009)
dc.identifierdoi:10.1103/PhysRevA.79.050301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229725
dc.subjectQuantum Physics
dc.titlePhase-Covariant Quantum Benchmarks
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