Show simple item record

dc.contributor.authorMitchell, Morgan W.
dc.contributor.authorAbellán, Carlos, 1990-
dc.contributor.authorAmaya, Waldimar
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2015-03-16T16:22:53Z
dc.date.available2015-03-16T16:22:53Z
dc.date.issued2015-01-12
dc.identifier.citationMitchell, Morgan W; Abellan, Carlos; Amaya, Waldimar. Strong experimental guarantees in ultrafast quantum random number generation. "Physical Review A: Atomic, Molecular, and Optical Physics", 12 Gener 2015, vol. 91, núm. 012314.
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/2117/26741
dc.description.abstractWe describe a methodology and standard of proof for experimental claims of quantum random-number generation (QRNG), analogous to well-established methods from precision measurement. For appropriately constructed physical implementations, lower bounds on the quantum contribution to the average min-entropy can be derived from measurements on the QRNG output. Given these bounds, randomness extractors allow generation of nearly perfect “-random” bit streams. An analysis of experimental uncertainties then gives experimentally derived confidence levels on the randomness of these sequences. We demonstrate the methodology by application to phase-diffusion QRNG, driven by spontaneous emission as a trusted randomness source. All other factors, including classical phase noise, amplitude fluctuations, digitization errors, and correlations due to finite detection bandwidth, are treated with paranoid caution, i.e., assuming the worst possible behaviors consistent with observations. A data-constrained numerical optimization of the distribution of untrusted parameters is used to lower bound the average min-entropy. Under this paranoid analysis, the QRNG remains efficient, generating at least 2.3 quantum random bits per symbol with 8-bit digitization and at least 0.83 quantum random bits per symbol with binary digitization at a c
dc.format.extent10
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.subjectÀrees temàtiques de la UPC::Física::Mecànica quàntica
dc.subject.lcshQuantum optics
dc.subject.otherquantum random-number generation
dc.titleStrong experimental guarantees in ultrafast quantum random number generation
dc.typeArticle
dc.subject.lemacQuàntums, Teoria dels
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.012314
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/MICINN//FIS2011-23520/ES/MAGNETOMETRIA ULTRA-PRECISA BASADA EN OPTICA CUANTICA/
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/280169/EU/Atomic Quantum Metrology/AQUMET
local.citation.authorMitchell, Morgan W; Abellan, Carlos; Amaya, Waldimar
local.citation.publicationNamePhysical Review A: Atomic, Molecular, and Optical Physics
local.citation.volume91
local.citation.number012314


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record