Physical Review Letters 2017-07-18

Neural Decoder for Topological Codes

Giacomo Torlai and Roger G. Melko

Index: 10.1103/PhysRevLett.119.030501

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Abstract

We present an algorithm for error correction in topological codes that exploits modern machine learning techniques. Our decoder is constructed from a stochastic neural network called a Boltzmann machine, of the type extensively used in deep learning. We provide a general prescription for the training of the network and a decoding strategy that is applicable to a wide variety of stabilizer codes with very little specialization. We demonstrate the neural decoder numerically on the well-known two-dimensional toric code with phase-flip errors.

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