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dc.contributor.authorWang, Hui
dc.contributor.authorQin, Jian
dc.contributor.authorDing, Xing
dc.contributor.authorChen, Ming-Cheng
dc.contributor.authorChen, Si
dc.contributor.authorYou, Xiang
dc.contributor.authorHe, Yu-Ming
dc.contributor.authorJiang, Xiao
dc.contributor.authorYou, L.
dc.contributor.authorWang, Z.
dc.contributor.authorSchneider, C.
dc.contributor.authorRenema, J. J.
dc.contributor.authorHoefling, Sven
dc.contributor.authorLu, Chao-Yang
dc.contributor.authorPan, Jian-Wei
dc.identifier.citationWang , H , Qin , J , Ding , X , Chen , M-C , Chen , S , You , X , He , Y-M , Jiang , X , You , L , Wang , Z , Schneider , C , Renema , J J , Hoefling , S , Lu , C-Y & Pan , J-W 2019 , ' Boson sampling with 20 input photons in 60-mode interferometer at 10 14 -dimensional Hilbert space ' , Physical Review Letters , vol. 123 , no. 15 , 250503 .
dc.identifier.otherPURE: 265378156
dc.identifier.otherPURE UUID: b3dfea49-ebb8-422a-91d6-225bda14f269
dc.identifier.otherScopus: 85077268652
dc.identifier.otherWOS: 000503245200002
dc.description.abstractQuantum computing experiments are moving into a new realm of increasing size and complexity, with the short-term goal of demonstrating an advantage over classical computers. Boson sampling is a promising platform for such a goal; however, the number of detected single photons is up to five so far, limiting these small-scale implementations to a proof-of-principle stage. Here, we develop solid-state sources of highly efficient, pure, and indistinguishable single photons and 3D integration of ultralow-loss optical circuits. We perform experiments with 20 pure single photons fed into a 60-mode interferometer. In the output, we detect up to 14 photons and sample over Hilbert spaces with a size up to 3.7×1014, over 10 orders of magnitude larger than all previous experiments, which for the first time enters into a genuine sampling regime where it becomes impossible to exhaust all possible output combinations. The results are validated against distinguishable samplers and uniform samplers with a confidence level of 99.9%.
dc.relation.ispartofPhysical Review Lettersen
dc.rightsCopyright © 2019 American Physical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleBoson sampling with 20 input photons in 60-mode interferometer at 1014-dimensional Hilbert spaceen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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