Conclusive Experimental Demonstration of One-Way Einstein-Podolsky-Rosen Steering
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Author(s)
Tischler, Nora
Ghafari, Farzad
Baker, Travis J
Slussarenko, Sergei
Patel, Raj B
Weston, Morgan M
Wollmann, Sabine
Shalm, Lynden K
Verma, Varun B
Nam, Sae Woo
Nguyen, H Chau
Wiseman, Howard M
Pryde, Geoff J
Griffith University Author(s)
Year published
2018
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Show full item recordAbstract
One of the most noteworthy and fundamental
features of quantum mechanics is the fact that
it admits stronger correlations between distant objects
than what would be possible in a classical world. Quantum
correlations can be categorized into the following
classes, which form a strict hierarchy [1–3]: entanglement
is a superset of Einstein-Podolsky-Rosen (EPR)
steerability, which in turn is a superset of Bell nonlocality.
Out of these, steering is special in that it allows
for, and in fact intrinsically contains, asymmetry. Steering
is operationally defined as a quantum information
task, where one untrusted party (for instance ...
View more >One of the most noteworthy and fundamental features of quantum mechanics is the fact that it admits stronger correlations between distant objects than what would be possible in a classical world. Quantum correlations can be categorized into the following classes, which form a strict hierarchy [1–3]: entanglement is a superset of Einstein-Podolsky-Rosen (EPR) steerability, which in turn is a superset of Bell nonlocality. Out of these, steering is special in that it allows for, and in fact intrinsically contains, asymmetry. Steering is operationally defined as a quantum information task, where one untrusted party (for instance called Alice) tries to convince another distant, trusted party (Bob) that they share entanglement. Bob asks Alice to make certain measurements on her quantum system (e.g., particle) and to announce the measurement outcomes, but is not sure whether Alice answers honestly, or indeed, even has a particle. He also makes corresponding measurements on his particle and checks whether the correlations of their measurement outcomes rule out a so-called local hidden state model for his particle, thereby proving shared entanglement.
View less >
View more >One of the most noteworthy and fundamental features of quantum mechanics is the fact that it admits stronger correlations between distant objects than what would be possible in a classical world. Quantum correlations can be categorized into the following classes, which form a strict hierarchy [1–3]: entanglement is a superset of Einstein-Podolsky-Rosen (EPR) steerability, which in turn is a superset of Bell nonlocality. Out of these, steering is special in that it allows for, and in fact intrinsically contains, asymmetry. Steering is operationally defined as a quantum information task, where one untrusted party (for instance called Alice) tries to convince another distant, trusted party (Bob) that they share entanglement. Bob asks Alice to make certain measurements on her quantum system (e.g., particle) and to announce the measurement outcomes, but is not sure whether Alice answers honestly, or indeed, even has a particle. He also makes corresponding measurements on his particle and checks whether the correlations of their measurement outcomes rule out a so-called local hidden state model for his particle, thereby proving shared entanglement.
View less >
Journal Title
Physical Review Letters
Volume
121
Copyright Statement
© 2018 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.
Subject
Mathematical sciences
Physical sciences
Quantum information, computation and communication
Quantum optics and quantum optomechanics
Engineering