Search Results for author: Thomas R. Bromley

Found 6 papers, 6 papers with code

Estimating the gradient and higher-order derivatives on quantum hardware

1 code implementation14 Aug 2020 Andrea Mari, Thomas R. Bromley, Nathan Killoran

For a large class of variational quantum circuits, we show how arbitrary-order derivatives can be analytically evaluated in terms of simple parameter-shift rules, i. e., by running the same circuit with different shifts of the parameters.

Quantum Physics

Transfer learning in hybrid classical-quantum neural networks

5 code implementations17 Dec 2019 Andrea Mari, Thomas R. Bromley, Josh Izaac, Maria Schuld, Nathan Killoran

We extend the concept of transfer learning, widely applied in modern machine learning algorithms, to the emerging context of hybrid neural networks composed of classical and quantum elements.

Transfer Learning

Classical benchmarking of Gaussian Boson Sampling on the Titan supercomputer

1 code implementation1 Oct 2018 Brajesh Gupt, Juan Miguel Arrazola, Nicolás Quesada, Thomas R. Bromley

We determine the time and memory resources as well as the amount of computational nodes required to produce samples for different numbers of modes and detector clicks.

Quantum Physics

Machine learning method for state preparation and gate synthesis on photonic quantum computers

3 code implementations27 Jul 2018 Juan Miguel Arrazola, Thomas R. Bromley, Josh Izaac, Casey R. Myers, Kamil Brádler, Nathan Killoran

In the simplest case of a single input state, our method discovers circuits for preparing a desired quantum state.

Quantum Physics

Continuous-variable quantum neural networks

8 code implementations18 Jun 2018 Nathan Killoran, Thomas R. Bromley, Juan Miguel Arrazola, Maria Schuld, Nicolás Quesada, Seth Lloyd

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.

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