Gradients of parameterized quantum gates using the parameter-shift rule and gate decomposition

Gavin E. Crooks

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arXiv · 1905.13311

Gradients of parameterized quantum gates using the parameter-shift rule and gate decomposition

Gavin E. Crooks

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Abstract

The parameter-shift rule is an approach to measuring gradients of quantum circuits with respect to their parameters, which does not require ancilla qubits or controlled operations. Here, I discuss applying this approach to a wider range of parameterize quantum gates by decomposing gates into a product of standard gates, each of which is parameter-shift rule differentiable.

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Gavin E. Crooks. 2019-05-30. Gradients of parameterized quantum gates using the parameter-shift rule and gate decomposition. https://arxiv.org/abs/1905.13311

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