Circuit-Based Quantum Random Access Memory for Classical Data

Cited 81 time in webofscience Cited 46 time in scopus
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dc.contributor.authorPark, Daniel K.ko
dc.contributor.authorPetruccione, Francescoko
dc.contributor.authorRhee, June-Koo Kevinko
dc.date.accessioned2019-04-15T14:15:58Z-
dc.date.available2019-04-15T14:15:58Z-
dc.date.created2019-03-26-
dc.date.created2019-03-26-
dc.date.created2019-03-26-
dc.date.created2019-03-26-
dc.date.created2019-03-26-
dc.date.issued2019-03-
dc.identifier.citationSCIENTIFIC REPORTS, v.9-
dc.identifier.issn2045-2322-
dc.identifier.urihttp://hdl.handle.net/10203/254005-
dc.description.abstractA prerequisite for many quantum information processing tasks to truly surpass classical approaches is an efficient procedure to encode classical data in quantum superposition states. In this work, we present a circuit-based flip-flop quantum random access memory to construct a quantum database of classical information in a systematic and flexible way. For registering or updating classical data consisting of M entries, each represented by n bits, the method requires O(n) qubits and O(Mn) steps. With postselection at an additional cost, our method can also store continuous data as probability amplitudes. As an example, we present a procedure to convert classical training data for a quantum supervised learning algorithm to a quantum state. Further improvements can be achieved by reducing the number of state preparation queries with the introduction of quantum forking.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleCircuit-Based Quantum Random Access Memory for Classical Data-
dc.typeArticle-
dc.identifier.wosid000460627700037-
dc.identifier.scopusid2-s2.0-85062633065-
dc.type.rimsART-
dc.citation.volume9-
dc.citation.publicationnameSCIENTIFIC REPORTS-
dc.identifier.doi10.1038/s41598-019-40439-3-
dc.contributor.localauthorRhee, June-Koo Kevin-
dc.contributor.nonIdAuthorPark, Daniel K.-
dc.contributor.nonIdAuthorPetruccione, Francesco-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
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