Cavity QED and Quantum Computation in the Weak Coupling Regime
摘要
In this paper we consider a model of quantum computation based on n atoms of laser-cooled and trapped linearly in a cavity and realize it as the n atoms Tavis-Cummings Hamiltonian interacting with n external (laser) fields. We solve the Schr{\" o}dinger equation of the model in the case of n=2 and construct the controlled NOT gate by making use of a resonance condition and rotating wave approximation associated to it. Our method is not heuristic but completely mathematical, and the significant feature is a consistent use of Rabi oscillations. We also present an idea of the construction of three controlled NOT gates in the case of n=3 which gives the controlled-controlled NOT gate.
引用
@article{arxiv.quant-ph/0407014,
title = {Cavity QED and Quantum Computation in the Weak Coupling Regime},
author = {Kazuyuki Fujii and Kyoko Higashida and Ryosuke Kato and Yukako Wada},
journal= {arXiv preprint arXiv:quant-ph/0407014},
year = {2009}
}
备注
Latex file, 22 pages, revised version. To appear in Journal of Optics B : Quantum and Semiclassical Optics