Experimental measurement of a nonlinear entanglement witness by hyperentangling two-qubit states

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73588524" target="_blank" >RIV/61989592:15310/18:73588524 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/18:00496481
Result on the web
<a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.98.032307" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.98.032307</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.98.032307" target="_blank" >10.1103/PhysRevA.98.032307</a>

Result language
angličtina
Original language name
Experimental measurement of a nonlinear entanglement witness by hyperentangling two-qubit states
Original language description
We demonstrate that nonlinear entanglement witnesses can be made particularly useful for entanglement detection in hyperentangled or multilevel states. We test this idea experimentally on the platform of linear optics using a hyperentangled state of two photons. Instead of several simultaneous copies of two-photon entangled states, one can directly measure the witness on a single copy of a hyperentangled state. Our results indicate that hyperentanglement can be used for quick entanglement detection and it provides a practical test bed for experiments with nonlinear entanglement witnesses.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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