Quantum Information Processing with Nanomechanical Qubits
Abstract
We introduce an approach to quantum information processing where the information is stored in the motional degrees of freedom of nanomechanical devices. The qubits of our approach are formed by the two lowest energy levels of mechanical resonators which are tuned to be strongly anharmonic by suitable electrostatic fields. Single qubit rotations are conducted by radio frequency voltage pulses that are applied to individual resonators. Two qubit entangling gates in turn are implemented via a coupling of two qubits to a common optical resonance of a high finesse cavity. We find that gate fidelities exceeding 99% can be achieved for realistic experimental parameters.
Cite
@article{arxiv.1211.4456,
title = {Quantum Information Processing with Nanomechanical Qubits},
author = {Simon Rips and Michael J. Hartmann},
journal= {arXiv preprint arXiv:1211.4456},
year = {2013}
}
Comments
estimates for electric noise added, typos corrected, to appear in Phys Rev Lett