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arXiv · 1907.02471

Generalized Anti-Wick Quantum States

Maurice de Gosson
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Abstract

The purpose of this Note is to study a simple class of mixed states and the corresponding density operators (matrices). These operators, which we call quite Toeplitz density operators correspond to states obtained from a fixed function ("window") by position-momentum translations, and reduce in the simplest case to the anti-Wick operators considered long ago by Berezin. The rigorous study of Toeplitz operators requires the use of classes of functional spaces defined by Feichtinger.

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Maurice de Gosson. 2019-07-04. Generalized Anti-Wick Quantum States. https://arxiv.org/abs/1907.02471

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