Shannon entropy as a measure of uncertainty in positions and momenta

Abstract

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).

Contribution to the proceedings after the 12th ICSSUR/Feynfest Conference held in Foz do Iguacu (Brazil)

References in corpus (2)

• Formulation of the uncertainty relations in terms of the Renyi entropies
• Uncertainty related to position and momentum localization of a quantum state

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• Exact Shannon entropies for the multidimensional harmonic states
• Quantum information measures of the Dirichlet and Neumann hyperspherical dots
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