Qubit versus bit for measuring an integral of a classical field
Quantum Physics
2009-11-07 v2
Abstract
Methods for measuring an integral of a classical field via local interaction of classical bits or local interaction of qubits passing through the field one at a time are analyzed. A quantum method, which has an exponentially better precision than any classical method we could see, is described.
Cite
@article{arxiv.quant-ph/0212165,
title = {Qubit versus bit for measuring an integral of a classical field},
author = {Lev Vaidman and Zion Mitrani},
journal= {arXiv preprint arXiv:quant-ph/0212165},
year = {2009}
}
Comments
Significantly revised, to be published in PRL