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Photonic Boson Sampling in a Tunable Circuit
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Photonic Boson Sampling in a Tunable Circuit
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Journal Article
Photonic Boson Sampling in a Tunable Circuit
2013
Overview
Quantum computers are unnecessary for exponentially efficient computation or simulation if the Extended Church-Turing thesis is correct. The thesis would be strongly contradicted by physical devices that efficiently perform tasks believed to be intractable for classical computers. Such a task is boson sampling: sampling the output distributions of n bosons scattered by some passive, linear unitary process. We tested the central premise of boson sampling, experimentally verifying that three-photon scattering amplitudes are given by the permanents of submatrices generated from a unitary describing a six-mode integrated optical circuit. We find the protocol to be robust, working even with the unavoidable effects of photon loss, non-ideal sources, and imperfect detection. Scaling this to large numbers of photons should be a much simpler task than building a universal quantum computer.
Publisher
American Association for the Advancement of Science,The American Association for the Advancement of Science
Subject
/ Bosons
/ Classical and quantum physics: mechanics and fields
/ Colors
/ Design. Technologies. Operation analysis. Testing
/ Devices
/ Electric, optical and optoelectronic circuits
/ Exact sciences and technology
/ Grants
/ Hardware
/ Integrated optics. Optical fibers and wave guides
/ Logic
/ Online
/ Optical and optoelectronic circuits
/ Photons
/ Physics
/ Sampling
/ Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
