Universal Control of Decoupled Quantum Systems
Quantum Physics
2009-01-23 v1
Abstract
It is shown that if one can perform a restricted set of fast manipulations on a quantum system, one can implement a large class of dynamical evolutions by effectively removing or introducing selected Hamiltonians. The procedure can be used to achieve universal noise-tolerant control based on purely unitary open-loop transformations of the dynamics. As a result, it is in principle possible to perform noise-protected universal quantum computation using no extra space resources.
Cite
@article{arxiv.quant-ph/9906094,
title = {Universal Control of Decoupled Quantum Systems},
author = {Lorenza Viola and Seth Lloyd and Emanuel Knill},
journal= {arXiv preprint arXiv:quant-ph/9906094},
year = {2009}
}
Comments
4 pages, no figures; REVTeX style