Device-independent certification of high-dimensional quantum systems.
An important problem in quantum information processing is the certification of the dimension of quantum systems without making assumptions about the devices used to prepare and measure them, that is, in a device-independent manner. A crucial question is whether such certification is experimentally feasible for high-dimensional quantum systems. Here we experimentally witness in a device-independent manner the generation of six-dimensional quantum systems encoded in the orbital angular momentum of single photons and show that the same method can be scaled, at least, up to dimension 13.
Dipartimento di Fisica, "Sapienza" Universitá di Roma, I-00185 Roma, Italy.
Vincenzo
V
D'Ambrosio
Dipartimento di Fisica, "Sapienza" Universitá di Roma, I-00185 Roma, Italy.
Fabrizio
F
Bisesto
Dipartimento di Fisica, "Sapienza" Universitá di Roma, I-00185 Roma, Italy and Istituto Nazionale di Ottica (INO-CNR), Largo Enrico Fermi 6, I-50125 Firenze, Italy.
Fabio
F
Sciarrino
Center for Optics and Photonics, MSI-Nucleus on Advanced Optics, Departamento de Física, Universidad de Concepción, 160-C Concepción, Chile.
Johanna F
JF
Barra
Center for Optics and Photonics, MSI-Nucleus on Advanced Optics, Departamento de Física, Universidad de Concepción, 160-C Concepción, Chile.
Gustavo
G
Lima
Departamento de Física Aplicada II, Universidad de Sevilla, E-41012 Sevilla, Spain.
Adán
A
Cabello