Scalable boson-sampling with time-bin encoding using a loop-based architecture

Abstract

We present an architecture for arbitrarily scalable boson-sampling using two nested fiber loops. The architecture has fixed experimental complexity, irrespective of the size of the desired interferometer, whose scale is limited only by fiber and switch loss rates. The architecture employs time-bin encoding, whereby the incident photons form a pulse train, which enters the loops. Dynamically controlled loop coupling ratios allow the construction of the arbitrary linear optics interferometers required for boson-sampling. The architecture employs only a single point of interference and may thus be easier to stabilize than other approaches. The scheme has polynomial complexity and could be realized using demonstrated present-day technologies.

7 pages, 7 figures

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• Photonic Boson Sampling in a Tunable Circuit
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Cited by in corpus (6)

• Experimental Scattershot Boson Sampling
• Sampling of partially distinguishable bosons and the relation to the multidimensional permanent
• Partial indistinguishability theory for multi-photon experiments in multiport devices
• Sampling arbitrary photon-added or photon-subtracted squeezed states is in the same complexity class as boson sampling
• Tight bound on trace distance between a realistic device with partially indistinguishable bosons and the ideal Boson Sampling
• A simple scheme for universal linear optics quantum computing with constant experimental complexity using fiber-loops