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Boson Sampling on a Photonic Chip
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Journal Article
Boson Sampling on a Photonic Chip
2013
Overview
Although universal quantum computers ideally solve problems such as factoring integers exponentially more efficiently than classical machines, the formidable challenges in building such devices motivate the demonstration of simpler, problem-specific algorithms that still promise a quantum speedup. We constructed a quantum boson-sampling machine (QBSM) to sample the output distribution resulting from the nonclassical interference of photons in an integrated photonic circuit, a problem thought to be exponentially hard to solve classically. Unlike universal quantum computation, boson sampling merely requires indistinguishable photons, linear state evolution, and detectors. We benchmarked our QBSM with three and four photons and analyzed sources of sampling inaccuracy. Scaling up to larger devices could offer the first definitive quantum-enhanced computation.
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
/ 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
