Quantum computation with programmable connections between gates
Quantum Physics
2013-05-27 v2
Abstract
A new model of quantum computation is considered, in which the connections between gates are programmed by the state of a quantum register. This new model of computation is shown to be more powerful than the usual quantum computation, e. g. in achieving the programmability of permutations of N different unitary channels with 1 use instead of N uses per channel. For this task, a new elemental resource is needed, the "quantum switch", which can be programmed to switch the order of two channels with a single use of each one.
Cite
@article{arxiv.1109.5987,
title = {Quantum computation with programmable connections between gates},
author = {Timoteo Colnaghi and Giacomo Mauro D'Ariano and Paolo Perinotti and Stefano Facchini},
journal= {arXiv preprint arXiv:1109.5987},
year = {2013}
}
Comments
5 pages, PRL style