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- Centre National de la Recherche ScientifiqueFR463 papers
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5 papers · 2 filters
High-dimensional decoy-state quantum key distribution over 0.3 km of multicore telecommunication optical fibers
G. Cañas, N. Vera, J. Cariñe +11
Multiplexing is a strategy to augment the transmission capacity of a communication system. It consists of combining multiple signals over the same data channel and it has been very…
Experimental demonstration of the connection between quantum contextuality and graph theory
Gustavo Cañas, Evelyn Acuña, Jaime Cariñe +5
We report a method that exploits a connection between quantum contextuality and graph theory to reveal any form of quantum contextuality in high-precision experiments. We use this…
Correlation transfer in large-spin chains
I. F. Valtierra, J. L. Romero, A. B. Klimov
It is shown that transient spin-spin correlations in one-dimensional spin S>>1 chain can be enhanced for initially factorized and individually squeezed spin states. Such correlatio…
Realizing quantum advantage without entanglement in single-photon states
A. Maldonado-Trapp, Pablo Solano, Anzi Hu +1
We discuss the realization of quantum advantage in a system without quantum entanglement but with non-zero quantum discord. We propose an optical realization of symmetric two-qubit…
Device-Independent Certification of a Nonprojective Qubit Measurement
Esteban S. Gómez, Santiago Gómez, Pablo González +8
Quantum measurements on a two-level system can have more than two independent outcomes, and in this case, the measurement cannot be projective. Measurements of this general type ar…