dc.contributor.author | Zhang, Chao | |
dc.contributor.author | Cheng, Shuming | |
dc.contributor.author | Li, Li | |
dc.contributor.author | Liang, Qiu-Yue | |
dc.contributor.author | Liu, Bi-Heng | |
dc.contributor.author | Huang, Yun-Feng | |
dc.contributor.author | Li, Chuan-Feng | |
dc.contributor.author | Guo, Guang-Can | |
dc.contributor.author | Hal, Michael JW | |
dc.contributor.author | Wiseman, Howard M | |
dc.contributor.author | Pryde, Geoff J | |
dc.date.accessioned | 2019-06-19T13:06:50Z | |
dc.date.available | 2019-06-19T13:06:50Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.doi | 10.1103/PhysRevLett.122.070402 | |
dc.identifier.uri | http://hdl.handle.net/10072/384444 | |
dc.description.abstract | The set of all qubit states that can be steered to by measurements on a correlated qubit is predicted to form an ellipsoid—called the quantum steering ellipsoid—in the Bloch ball. This ellipsoid provides a simple visual characterization of the initial two-qubit state, and various aspects of entanglement are reflected in its geometric properties. We experimentally verify these properties via measurements on many different polarization-entangled photonic qubit states. Moreover, for pure three-qubit states, the volumes of the two quantum steering ellipsoids generated by measurements on the first qubit are predicted to satisfy a tight monogamy relation, which is strictly stronger than the well-known monogamy of entanglement for concurrence. We experimentally verify these predictions, using polarization and path entanglement. We also show experimentally that this monogamy relation can be violated by a mixed entangled state, which nevertheless satisfies a weaker monogamy relation. | |
dc.description.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | AMER PHYSICAL SOC | |
dc.relation.ispartofpagefrom | 1 | |
dc.relation.ispartofpageto | 10 | |
dc.relation.ispartofissue | 7 | |
dc.relation.ispartofjournal | PHYSICAL REVIEW LETTERS | |
dc.relation.ispartofvolume | 122 | |
dc.subject.fieldofresearch | Mathematical sciences | |
dc.subject.fieldofresearch | Physical sciences | |
dc.subject.fieldofresearch | Engineering | |
dc.subject.fieldofresearchcode | 49 | |
dc.subject.fieldofresearchcode | 51 | |
dc.subject.fieldofresearchcode | 40 | |
dc.title | Experimental Validation of Quantum Steering Ellipsoids and Tests of Volume Monogamy Relations | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.rights.copyright | © 2019 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version. | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Wiseman, Howard M. | |
gro.griffith.author | Pryde, Geoff | |