Coherently manipulating two-qubit quantum information using a pair of simultaneous laser pulses
Quantum Physics
2009-11-10 v2
Abstract
Several sequential operations are usually needed for implementing controlled quantum gates and generating entanglement between a pair of quantum bits. Based on the conditional quantum dynamics for a two-ion system beyond the Lamb-Dicke limit, here we propose a theoretical scheme for manipulating two-qubit quantum information, i.e., implementing a universal two-qubit quantum gate and generating a two-qubit entangled state, by using a pair of simultaneous laser pulses. Neither the Lamb-Dicke approximation nor the auxiliary atomic level are required. The experimental realizability of this simple approach is also discussed.
Cite
@article{arxiv.quant-ph/0411132,
title = {Coherently manipulating two-qubit quantum information using a pair of simultaneous laser pulses},
author = {L. F. Wei and Franco Nori},
journal= {arXiv preprint arXiv:quant-ph/0411132},
year = {2009}
}