Schemes for robust quantum computation with polar molecules: analysis of experimental feasibility
Abstract
We analyse recently proposed physical implementations of a quantum computer based on polar molecules. A set of general requirements for a molecular system is presented, which would provide an optimal combination of quantum gate times, coherence times, number of operations, high gate accuracy and experimental feasibility. We proceed with a detailed analysis of a scheme utilizing switchable dipole-dipole interactions between polar molecules. Switchable dipole-dipole interaction is an efficient tool for realization of two-qubit quantum gates, necessary to construct a universal set of gates. We consider three possible realizations of a phase gate using specific molecules, such as CO, NF, alkali dimers and alkaline-earth monohalides. We suggest suitable electronic states and ransitions and investigate requirements for the pulses driving them. Finally, we analyse possible sources of decoherence.
Cite
@article{arxiv.0710.4356,
title = {Schemes for robust quantum computation with polar molecules: analysis of experimental feasibility},
author = {Elena Kuznetsova and Robin Côté and Kate Kirby and Susanne Yelin},
journal= {arXiv preprint arXiv:0710.4356},
year = {2007}
}