A-entropy for generalized observables |
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| Authors: | Marian Grabowski |
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| Institution: | (1) Institute of Physics, Nicholas Copernicus University, Toru , Poland |
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| Abstract: | We investigateA-entropy with respect to certain semispectral measures in a given state. It is shown that the entropy with respect to an observable describing  simultaneous measurement of position and momentum is greater than the von Neumann entropy. Similar results are obtained for the fuzzy and sharp positions. The continuity properties of this entropy are also examined. |
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