Optimal quantum control with digitized Quantum Annealing
Quantum Physics
2019-11-28 v1
Abstract
We show how a digitized version of Quantum Annealing can be made optimal, realizing the best possible solution allowed by quantum mechanics in the shortest time, without any prior knowledge on the location and properties of the spectral gap. Our findings elucidate the intimate relation between digitized-QA, optimal Quantum Control, and recently proposed hybrid quantum-classical variational algorithms for quantum-state preparation and optimization. We illustrate this on the simple benchmark problem of an unfrustrated antiferromagnetic Ising chain in a transverse field.
Cite
@article{arxiv.1911.12259,
title = {Optimal quantum control with digitized Quantum Annealing},
author = {Glen Bigan Mbeng and Rosario Fazio and Giuseppe E. Santoro},
journal= {arXiv preprint arXiv:1911.12259},
year = {2019}
}
Comments
arXiv admin note: substantial text overlap with arXiv:1906.08948