9704044v1

related topics
{let, theorem, proof}
{information, entropy, channel}
{measurement, state, measurements}
{time, decoherence, evolution}

A Linear Programming Approach to Attainable Cramer-Rao type Bounds and Randomness Condition

Masahito Hayashi

abstract: The author studies the Cramer-Rao type bound by a linear programming approach. By this approach, he found a necessary and sufficient condition that the Cramer-Rao type bound is attained by a random measurement. In a spin 1/2 system, this condition is satisfied.

oai_identifier:
oai:arXiv.org:quant-ph/9704044
categories:
quant-ph
comments:
LaTeX, 27 pages, submitted to Journal Mathematical Physics
arxiv_id:
quant-ph/9704044
created:
1997-04-27

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