dc.contributor.author | Lanyon, Benjamin P | |
dc.contributor.author | Barbieri, Marco | |
dc.contributor.author | Almeida, Marcelo P | |
dc.contributor.author | Jennewein, Thomas | |
dc.contributor.author | Ralph, Timothy C | |
dc.contributor.author | Resch, Kevin J | |
dc.contributor.author | Pryde, Geoff J | |
dc.contributor.author | O'Brien, Jeremy L | |
dc.contributor.author | Gilchrist, Alexei | |
dc.contributor.author | White, Andrew G | |
dc.date.accessioned | 2017-05-03T15:07:57Z | |
dc.date.available | 2017-05-03T15:07:57Z | |
dc.date.issued | 2009 | |
dc.date.modified | 2010-10-13T10:00:45Z | |
dc.identifier.issn | 1745-2473 | |
dc.identifier.doi | 10.1038/NPHYS1150 | |
dc.identifier.uri | http://hdl.handle.net/10072/30259 | |
dc.description.abstract | Quantum computation promises to solve fundamental, yet otherwise intractable, problems across a range of active fields of research. Recently, universal quantum logic-gate sets-the elemental building blocks for a quantum computer-have been demonstrated in several physical architectures. A serious obstacle to a full-scale implementation is the large number of these gates required to build even small quantum circuits. Here, we present and demonstrate a general technique that harnesses multi-level information carriers to significantly reduce this number, enabling the construction of key quantum circuits with existing technology. We present implementations of two key quantum circuits: the three-qubit Toffoli gate and the general two-qubit controlled-unitary gate. Although our experiment is carried out in a photonic architecture, the technique is independent of the particular physical encoding of quantum information, and has the potential for wider application. | |
dc.description.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.format.extent | 530504 bytes | |
dc.format.mimetype | application/pdf | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Nature Publishing Group | |
dc.publisher.place | United Kingdom | |
dc.relation.ispartofstudentpublication | N | |
dc.relation.ispartofpagefrom | 134 | |
dc.relation.ispartofpageto | 140 | |
dc.relation.ispartofissue | 2 | |
dc.relation.ispartofjournal | Nature Physics | |
dc.relation.ispartofvolume | 5 | |
dc.rights.retention | Y | |
dc.subject.fieldofresearch | Mathematical sciences | |
dc.subject.fieldofresearch | Physical sciences | |
dc.subject.fieldofresearchcode | 49 | |
dc.subject.fieldofresearchcode | 51 | |
dc.title | Simplifying quantum logic using higher-dimensional Hilbert spaces | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.rights.copyright | © 2009 Nature Publishing Group. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version. | |
gro.date.issued | 2009 | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Pryde, Geoff | |