2018

Continuous-variable quantum neural networks

Killoran, Nathan, Bromley, Thomas R., Arrazola, Juan Miguel et al.

Understand

We introduce a general method for building neural networks on quantum computers.

  • The quantum neural network is a variational quantum circuit built in the continuous-variable (CV) architecture, which encodes quantum information in continuous degrees of freedom such as the amplitudes of the electromagnetic field.
  • This circuit contains a layered structure of continuously parameterized gates which is universal for CV quantum computation.
  • Affine transformations and nonlinear activation functions, two key elements in neural networks, are enacted in the quantum network using Gaussian and non-Gaussian gates, respectively.

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