9803066v1

related topics
{states, state, optimal}
{equation, function, exp}
{cos, sin, state}
{let, theorem, proof}
{measurement, state, measurements}
{information, entropy, channel}
{theory, mechanics, state}
{energy, state, states}
{state, algorithm, problem}
{algorithm, log, probability}

Minimal optimal generalized quantum measurements

J. I. Latorre, P. Pascual, R. Tarrach

abstract: Optimal and finite positive operator valued measurements on a finite number $N$ of identically prepared systems have been presented recently. With physical realization in mind we propose here optimal and minimal generalized quantum measurements for two-level systems. We explicitly construct them up to N=7 and verify that they are minimal up to N=5. We finally propose an expression which gives the size of the minimal optimal measurements for arbitrary $N$.

oai_identifier:
oai:arXiv.org:quant-ph/9803066
categories:
quant-ph hep-th
comments:
9 pages, Latex
doi:
10.1103/PhysRevLett.81.1351
arxiv_id:
quant-ph/9803066
journal_ref:
Phys.Rev.Lett. 81 (1998) 1351-1354
report_no:
UB-ECM-1
created:
1998-03-25

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