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7 papers · 2 filters
Testing noncontextuality inequalities that are building blocks of quantum correlations
Mauricio Arias, Gustavo Cañas, Esteban S. Gómez +6
Measurement scenarios containing events with relations of exclusivity represented by pentagons, heptagons, nonagons, etc., or their complements are the only ones in which quantum p…
Entanglement thresholds for displaying the quantum nature of teleportation
Luis Roa, Robinson Gómez, Ariana Muñoz +1
A protocol for transferring an unknown single qubit state has quantum features when the average fidelity of the outcomes is greater than 2/3. We use the probabilistic and unambiguo…
Mutually unbiased bases with free parameters
Dardo Goyeneche, Santiago Gomez
We present a systematic method to introduce free parameters in sets of mutually unbiased bases. In particular, we demonstrate that any set of m real mutually unbiased bases in dime…
Experimental Multi-Party Sequential State Discrimination
M. A. Solís-Prosser, P. González, J. Fuenzalida +4
Recently, a protocol for quantum state discrimination (QSD) in a multi-party scenario has been introduced [Phys. Rev. Lett. 111, 100501 (2013)]. In this protocol, Alice generates a…
Postselection-Loophole-Free Bell Test Over an Installed Optical Fiber Network
Gonzalo Carvacho, Jaime Cariñe, Gabriel Saavedra +9
Device-independent (DI) quantum communication will require a loophole-free violation of Bell inequalities. In typical scenarios where line-of-sight between the communicating partie…
Analytical solutions and criteria for the quantum discord of two-qubit X-states
A. Maldonado-Trapp, Anzi Hu, Luis Roa
Except for a few special states, computing quantum discord remains a complicated optimization process. In this paper we present analytical solutions for computing quantum discord o…