# Noise-Resilient Quantum Dynamics Using Symmetry-Preserving Ansatzes

@article{Otten2019NoiseResilientQD, title={Noise-Resilient Quantum Dynamics Using Symmetry-Preserving Ansatzes}, author={Matthew Otten and Cristian L. Cortes and Stephen K. Gray}, journal={arXiv: Quantum Physics}, year={2019} }

We describe and demonstrate a method for the computation of quantum dynamics on small, noisy universal quantum computers. This method relies on the idea of `restarting' the dynamics; at least one approximate time step is taken on the quantum computer and then a parameterized quantum circuit ansatz is optimized to produce a state that well approximates the time-stepped results. The simulation is then restarted from the optimized state. By encoding knowledge of the form of the solution in the…

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