Experimental boson sampling in arbitrary integrated photonic circuits
Abstract
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 a classical computer, and motivates the development of technologies that enable precise control of multi-photon interference in large interferometers. Here we report multi-photon experiments in a 5-mode integrated interferometer. We use novel three-dimensional manufacturing techniques to achieve simultaneous control of 25 independent parameters that describe an arbitrary interferometer. We characterize the chip using one- and two-photon experiments, and confirm the quantum mechanical predictions for three-photon interference. Scaled up versions of this setup are the most promising way to demonstrate the computational capability of quantum systems, and may have applications in high-precision measurements and quantum communication.
Cite
@article{arxiv.1212.2783,
title = {Experimental boson sampling in arbitrary integrated photonic circuits},
author = {A. Crespi and R. Osellame and R. Ramponi and D. J. Brod and E. F. Galvao and N. Spagnolo and C. Vitelli and E. Maiorino and P. Mataloni and F. Sciarrino},
journal= {arXiv preprint arXiv:1212.2783},
year = {2013}
}
Comments
6 pages + 4 pages (Supplementary Information), 4 figures + 2 figures