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Open Quantum Systems Decoherence Quantum Simulation Entanglement Theory Quantum Correlations

Entropy, subentropy and the elementary symmetric functions

arXiv
Authors: Richard Jozsa, Graeme Mitchison

Year

2013

Paper ID

31259

Status

Preprint

Abstract Read

~2 min

Abstract Words

77

Citations

N/A

Abstract

We use complex contour integral techniques to study the entropy H and subentropy Q as functions of the elementary symmetric polynomials, revealing a series of striking properties. In particular for these variables, derivatives of -Q are equal to derivatives of H of one higher order and the first derivatives of H and Q are seen to be completely monotone functions. It then follows that exp (-H) and exp(-Q) are Laplace transforms of infinitely divisible probability distributions.

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  • We use complex contour integral techniques to study the entropy H and subentropy Q as functions of the elementary symmetric polynomials, revealing a series of striking properties.

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