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Quantum Delocalized Interactions

Paige, A. J. and Kwon, Hyukjoon and Simsek, Selwyn and Self, Chris N. and Gray, Johnnie and Kim, M. S. (2020) Quantum Delocalized Interactions. Physical Review Letters, 125 (24). Art. No. 240406. ISSN 0031-9007.

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Classical mechanics obeys the intuitive logic that a physical event happens at a definite spatial point. Entanglement, however, breaks this logic by enabling interactions without a specific location. In this work we study these delocalized interactions. These are quantum interactions that create less locational information than would be possible classically, as captured by the disturbance induced on some spatial superposition state. We introduce quantum games to capture the effect and demonstrate a direct operational use for quantum concurrence in that it bounds the nonclassical performance gain. We also find a connection with quantum teleportation, and demonstrate the games using an IBM quantum processor.

Item Type:Article
Related URLs:
URLURL TypeDescription
Kwon, Hyukjoon0000-0001-5520-0905
Simsek, Selwyn0000-0001-7301-572X
Gray, Johnnie0000-0001-9461-3024
Additional Information:© 2020 American Physical Society. (Received 6 May 2020; revised 6 October 2020; accepted 12 November 2020; published 10 December 2020) We acknowledge insightful discussions with Benjamin Yadin, David Jennings, Adam Callison, and Thomas Hebdige. A. P. and S. S. are funded by the EPSRC Centre for Doctoral Training in Controlled Quantum Dynamics. We thank the Royal Society, the KIST Open Lab programme, the QuantERA ERA-NET through EP/R044082/1, and the Samsung GRP grant for financial support.
Funding AgencyGrant Number
Korea Institute of Science and Technology (KIST)UNSPECIFIED
Engineering and Physical Sciences Research Council (EPSRC)EP/R044082/1
Issue or Number:24
Record Number:CaltechAUTHORS:20201216-104742552
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107119
Deposited By: George Porter
Deposited On:16 Dec 2020 19:00
Last Modified:16 Dec 2020 19:00

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