Quantum Illumination with Gaussian States

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dc.creatorTan, Si-Hui
dc.creatorErkmen, Baris I.
dc.creatorGiovannetti, Vittorio
dc.creatorGuha, Saikat
dc.creatorLloyd, Seth
dc.creatorMaccone, Lorenzo
dc.creatorPirandola, Stefano
dc.creatorShapiro, Jeffrey H.
dc.date2008-10-02
dc.date.accessioned2026-07-07T12:31:24Z
dc.date.available2026-07-07T12:31:24Z
dc.descriptionAn optical transmitter irradiates a target region containing a bright thermal-noise bath in which a low-reflectivity object might be embedded. The light received from this region is used to decide whether the object is present or absent. The performance achieved using a coherent-state transmitter is compared with that of a quantum illumination transmitter, i.e., one that employs the signal beam obtained from spontaneous parametric downconversion (SPDC). By making the optimum joint measurement on the light received from the target region together with the retained SPDC idler beam, the quantum illumination system realizes a 6 dB advantage in error probability exponent over the optimum reception coherent-state system. This advantage accrues despite there being no entanglement between the light collected from the target region and the retained idler beam.
dc.description4 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0810.0534
dc.identifierhttp://arxiv.org/abs/0810.0534
dc.identifierPhys. Rev. Lett. 101, 253601 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.253601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216431
dc.subjectQuantum Physics
dc.subjectOptics
dc.titleQuantum Illumination with Gaussian States
dc.typetext

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