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Q: Fachverband Quantenoptik und Photonik
Q 40: Poster: Quantum Optics and Photonics II
Q 40.36: Poster
Wednesday, March 8, 2017, 17:00–19:00, P OG2
Simulating boson sampling in free space — •Marc-Oliver Pleinert1,2 and Joachim von Zanthier1,2 — 1Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany — 2Erlangen Graduate School in Advanced Optical Technologies (SAOT), Universität Erlangen-Nürnberg, 91052 Erlangen, Germany
Boson sampling constitutes a promising model of quantum computation, which probably for the first time will show post-classical calculations, even though it is restricted and non-universal. Here, we investigate a particularly simple boson sampling device consisting of freely propagating photons of different statistics. We relate the boson sampling probabilities to correlation functions in free-space setups. We find that the structure of the multi-photon interferences and spatial correlation functions reflect exactly those occurring in boson sampling and thus are characterized by the permanent of a propagation matrix. As a result, we are able to simulate boson sampling-like computations in free space. We also investigate the computational complexity of such a setup.