Publications (6)
Efficient experimental validation of photonic boson sampling against the uniform distribution
N. Spagnolo, C. Vitelli, M. Bentivegna +10
A boson sampling device is a specialised quantum computer that solves a problem which is strongly believed to be computationally hard for classical computers. Recently a number of…
General rules for bosonic bunching in multimode interferometers
N. Spagnolo, C. Vitelli, L. Sansoni +8
We perform a comprehensive set of experiments that characterize bosonic bunching of up to 3 photons in interferometers of up to 16 modes. Our experiments verify two rules that gove…
Enhanced Resolution of Lossy Interferometry by Coherent Amplification of Single Photons
C. Vitelli, N. Spagnolo, L. Toffoli +2
In the quantum sensing context most of the efforts to design novel quantum techniques of sensing have been constrained to idealized, noise-free scenarios, in which effects of envir…
Quantum to classical transition via fuzzy measurements on high gain spontaneous parametric down-conversion
C. Vitelli, N. Spagnolo, L. Toffoli +2
We consider the high gain spontaneous parametric down-conversion in a non collinear geometry as a paradigmatic scenario to investigate the quantum-to-classical transition by increa…
Experimental boson sampling in arbitrary integrated photonic circuits
A. Crespi, R. Osellame, R. Ramponi +7
Photons naturally solve the BosonSampling problem: sample the outputs of a multi-photon experiment in a linear-optical interferometer. This is strongly believed to be hard to do on…
Quantum interferometry with three-dimensional geometry
N. Spagnolo, L. Aparo, C. Vitelli +5
Quantum interferometry uses quantum resources to improve phase estimation with respect to classical methods. Here we propose and theoretically investigate a new quantum interferome…