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arXiv · 1607.06633

Experimental demonstration of the connection between quantum contextuality and graph theory

Gustavo Cañas·Evelyn Acuña·Jaime Cariñe·Johanna F. Barra·Esteban S. Gómez·Guilherme B. Xavier·Gustavo Lima·Adán Cabello
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Abstract

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 technique to identify a graph which corresponds to an extreme form of quantum contextuality unnoticed before and test it using high-dimensional quantum states encoded in the linear transverse momentum of single photons. Our results open the door to the experimental exploration of quantum contextuality in all its forms, including those needed for quantum computation.

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Gustavo Cañas, Evelyn Acuña, Jaime Cariñe, Johanna F. Barra, Esteban S. Gómez, Guilherme B. Xavier, Gustavo Lima, Adán Cabello. 2016-07-22. Experimental demonstration of the connection between quantum contextuality and graph theory. https://doi.org/10.1103/physreva.94.012337

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