Efficient quantum computation in a network with probabilistic gates and logical encoding
Abstract
A new approach to efficient quantum computation with probabilistic gates is proposed and analyzed in both a local and non-local setting. It combines heralded gates previously studied for atom or atom-like qubits with logical encoding from linear optical quantum computation in order to perform high fidelity quantum gates across a quantum network. The error-detecting properties of the heralded operations ensure high fidelity while the encoding makes it possible to correct for failed attempts such that deterministic and high-quality gates can be achieved. Importantly, this is robust to photon loss, which is typically the main obstacle to photonic based quantum information processing. Overall this approach opens a novel path towards quantum networks with atomic nodes and photonic links.
Cite
@article{arxiv.1612.06812,
title = {Efficient quantum computation in a network with probabilistic gates and logical encoding},
author = {Johannes Borregaard and Anders S. Sørensen and Ignacio Cirac and Mikhail D. Lukin},
journal= {arXiv preprint arXiv:1612.06812},
year = {2017}
}
Comments
5 pages, 4 figures