Can quantum computer perform better than classical?
Quantum Physics
2007-05-23 v1
Abstract
A theoretical model of a quantum device which can factorize any number N in two steps i.e. by preparing an input state and performing a measurement is discussed. The analysis reveals that the duration of state preparation and measurement is proportional to N while the energy consumption grows like log N. These results suggest the existence of Heisenberg-type relation putting limits on the efficiency of a quantum computer in terms of a total computation time, a total energy consumption and a classical complexity of the problem.
Cite
@article{arxiv.quant-ph/0006018,
title = {Can quantum computer perform better than classical?},
author = {Robert Alicki},
journal= {arXiv preprint arXiv:quant-ph/0006018},
year = {2007}
}
Comments
2 pages, Revtex, no figures