Quantum Computing Gates via Optimal Control
Abstract
We demonstrate the use of optimal control to design two entropy-manipulating quantum gates which are more complex than the corresponding, commonly used, gates, such as CNOT and Toffoli (CCNOT): A 2-qubit gate called PE (polarization exchange) and a 3-qubit gate called COMP (polarization compression) were designed using GRAPE, an optimal control algorithm. Both gates were designed for a three-spin system. Our design provided efficient and robust NMR radio frequency (RF) pulses for 13C2-trichloroethylene (TCE), our chosen three-spin system. We then experimentally applied these two quantum gates onto TCE at the NMR lab. Such design of these gates and others could be relevant for near-future applications of quantum computing devices.
Cite
@article{arxiv.1308.4615,
title = {Quantum Computing Gates via Optimal Control},
author = {Yosi Atia and Yuval Elias and Tal Mor and Yossi Weinstein},
journal= {arXiv preprint arXiv:1308.4615},
year = {2014}
}
Comments
15 pages, 5 figures. Submitted to International Journal of Quantum Information