Pattern Recognition Techniques for Boson Sampling Validation

The difficulty of validating large-scale quantum devices, such as boson samplers, poses a major challenge for any research program that aims to show quantum advantages over classical hardware. Towards this aim, we propose a novel data-driven approach, wherein models are trained to identify common pa...

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Bibliographic Details
Published in:Physical review. X 2019-01, Vol.9 (1), p.011013, Article 011013
Main Authors: Agresti, Iris, Viggianiello, Niko, Flamini, Fulvio, Spagnolo, Nicolò, Crespi, Andrea, Osellame, Roberto, Wiebe, Nathan, Sciarrino, Fabio
Format: Article
Language:English
Subjects:
Algorithms
Clustering
Computer simulation
Hardware
Machine learning
Malfunctions
Pattern recognition
Photonics
Photons
Quantum computers
Quantum computing
Qubits (quantum computing)
Samplers
Sampling
Simulation
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Summary:The difficulty of validating large-scale quantum devices, such as boson samplers, poses a major challenge for any research program that aims to show quantum advantages over classical hardware. Towards this aim, we propose a novel data-driven approach, wherein models are trained to identify common pathologies using unsupervised machine-learning methods. We illustrate this idea by training a classifier that exploitsK-means clustering to distinguish between boson samplers that use indistinguishable photons from those that do not. We tune the model on numerical simulations of small-scale boson samplers and then validate the pattern-recognition technique on larger numerical simulations as well as on photonic chips in both traditional boson-sampling and scatter-shot experiments. The effectiveness of such a method relies on particle-type-dependent internal correlations present in the output distributions. This approach performs substantially better on the test data than previous methods and underscores the ability to further generalize its operation beyond the scope of the examples that it was trained on.
ISSN:2160-3308
2160-3308
DOI:10.1103/PhysRevX.9.011013