Monday, January 28, 2013

1301.6005 (Raoul Heese et al.)

Entropic uncertainty relation for pointer-based simultaneous
measurements of conjugate observables
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Raoul Heese, Matthias Freyberger
We present a family of entropic uncertainty relations for pointer-based simultaneous measurements of conjugate observables. The lower bounds of these relations explicitly incorporate the influence of the measurement apparatus. We achieve this by using a mathematical theorem which states that the information entropy of convoluted probability distributions is bound from below. As a consequence of these results we can straightforwardly show that appropriately squeezed states are minimal entropy states for simultaneous measurements.
View original: http://arxiv.org/abs/1301.6005

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