Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks
dc.contributor.author | Armstrong, Seiji | |
dc.contributor.author | Wang, Meng | |
dc.contributor.author | Teh, Run Yan | |
dc.contributor.author | Gong, Qihuang | |
dc.contributor.author | He, Qiongyi | |
dc.contributor.author | Janousek, Jiri | |
dc.contributor.author | Bachor, Hans | |
dc.contributor.author | Reid, Margaret D. | |
dc.contributor.author | Lam, Ping Koy | |
dc.date.accessioned | 2015-06-22T03:48:21Z | |
dc.date.available | 2015-06-22T03:48:21Z | |
dc.date.issued | 2015-01-05 | |
dc.date.updated | 2015-12-10T10:35:35Z | |
dc.description.abstract | The Einstein-Podolsky-Rosen (EPR) paradox established a link between entanglement and nonlocality in quantum mechanics. EPR steering is the nonlocality associated with the EPR paradox and has traditionally only been investigated between two parties. Here, we present the first experimental observations of multipartite EPR steering, and of the genuine tripartite continuous variable entanglement of three mesoscopic optical systems. We explore different linear optics networks - each one with optimised asymmetries - that create multipartite steerable states containing different numbers of quantised optical modes (qumodes). By introducing asymmetric loss on a 7-qumode state, we characterize 8 regimes of directional steering, showing that N + 1 regimes exist for an N-qumode state. Further, we reveal the directional monogamy of steering, and experimentally demonstrate continuous variable one-sided semi device-independent quantum secret sharing. Our methods establish principles for the development of multiparty quantum communication protocols with asymmetric observers, and can be extended to qubits, whether photonic, atomic, superconducting, or otherwise. | |
dc.description.sponsorship | This research was conducted by the Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology (project number CE110001029) and has been supported by the Australian Research Council DECRA and Discovery Project Grants schemes. S.A. is grateful for funding from the Australia–Asia Prime Minister‘s Award. R.Y.T. thanks Swinburne University for a Research SUPRA Award, and Q.H. thanks National Natural Science Foundation of China under Grant No. 11121091 and 11274025. This work was supported in part by National Science Foundation Grant No. PHYS-1066293 and the hospitality of the Aspen Center for Physics. | en_AU |
dc.identifier.issn | 1745-2473 | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/14046 | |
dc.publisher | Nature Publishing Group | |
dc.relation | http://purl.org/au-research/grants/arc/CE110001029 | |
dc.rights | © 2015 Macmillan Publishers Limited. | |
dc.source | Nature Physics | |
dc.title | Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks | |
dc.type | Journal article | |
dcterms.dateAccepted | 2014-12-23 | |
local.bibliographicCitation.issue | 2 | en_AU |
local.bibliographicCitation.lastpage | 172 | en_AU |
local.bibliographicCitation.startpage | 167 | en_AU |
local.contributor.affiliation | Armstrong, S., Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University | en_AU |
local.contributor.affiliation | Janousek, J., Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University | en_AU |
local.contributor.affiliation | Bachor, H.-A., Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University | en_AU |
local.contributor.affiliation | Lam, P. K., Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University | en_AU |
local.contributor.authoremail | seiji.armstrong@gmail.com | en_AU |
local.contributor.authoruid | u3950704 | en_AU |
local.identifier.absfor | 020600 - QUANTUM PHYSICS | |
local.identifier.absfor | 020500 - OPTICAL PHYSICS | |
local.identifier.absfor | 020502 - Lasers and Quantum Electronics | |
local.identifier.ariespublication | a383154xPUB1334 | |
local.identifier.citationvolume | 11 | en_AU |
local.identifier.doi | 10.1038/nphys3202 | en_AU |
local.identifier.scopusID | 2-s2.0-84926101300 | |
local.identifier.uidSubmittedBy | u1005913 | en_AU |
local.publisher.url | http://www.nature.com/ | en_AU |
local.type.status | Metadata only | en_AU |
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