0105098v1

related topics
{photon, photons, single}
{key, protocol, security}
{state, algorithm, problem}
{information, entropy, channel}
{measurement, state, measurements}
{cos, sin, state}
{algorithm, log, probability}
{theory, mechanics, state}
{time, wave, function}
{error, code, errors}
{bell, inequality, local}
{wave, scattering, interference}

How many photons are needed to distinguish two transparencies?

Graeme Mitchison, Serge Massar, Stefano Pironio

abstract: We give a bound on the minimum number of photons that must be absorbed by any quantum protocol to distinguish between two transparencies. We show how a quantum Zeno method in which the angle of rotation is varied at each iteration can attain this bound in certain situations.

oai_identifier:
oai:arXiv.org:quant-ph/0105098
categories:
quant-ph
comments:
5 pages, 4 figures
doi:
10.1103/PhysRevA.65.022110
arxiv_id:
quant-ph/0105098
journal_ref:
Phys. Rev. A 65, 022110 (2002)
report_no:
ULB-TH/01-12
created:
2001-05-21

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