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Shannon entropy as a measure of uncertainty in positions and momenta

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This paper is prepared as a contribution to the proceedings after the 12th ICSSUR/Feynfest Conference held in Foz do Iguacu (Brazil) from 2 to 6 May 2011. In the first part I briefy report the topic of entropic uncertainty relations for position and momentum variables. Then I investigate the discrete Shannon entropies related to the case of fnite number of detectors set to measure probability distributions in position and momentum spaces. I derive an uncertainty relation for the sum of the Shannon entropies which generalizes previous approaches [Phys. Lett. 103 A, 253 (1984)] based on an infnite number of detectors (bins)….
Read more: http://arxiv.org/PS_cache/arxiv/pdf/1108/1108.3828v1.pdf

Written by physicsgg

August 19, 2011 at 10:58 am

Posted in QUANTUM PHYSICS

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