Absence of Barren Plateaus in Quantum Convolutional Neural Networks

1 code implementation • 5 Nov 2020 • Arthur Pesah, M. Cerezo, Samson Wang, Tyler Volkoff, Andrew T. Sornborger, Patrick J. Coles

To derive our results we introduce a novel graph-based method to analyze expectation values over Haar-distributed unitaries, which will likely be useful in other contexts.

Cost Function Dependent Barren Plateaus in Shallow Parametrized Quantum Circuits

no code implementations • 2 Jan 2020 • M. Cerezo, Akira Sone, Tyler Volkoff, Lukasz Cincio, Patrick J. Coles

Variational quantum algorithms (VQAs) optimize the parameters $\vec{\theta}$ of a parametrized quantum circuit $V(\vec{\theta})$ to minimize a cost function $C$.

Visual Question Answering (VQA)