Noncommutative reading of the complex plane through Delone sequences

摘要

The Berezin-Klauder-Toeplitz ("anti-Wick") quantization or "noncommutative reading" of the complex plane, viewed as the phase space of a particle moving on the line, is derived from the resolution of the unity provided by the standard (or Gaussian) coherent states. The construction of these states and their attractive properties are essentially based on the energy spectrum of the harmonic oscillator, that is, on the natural numbers. This work is an attempt for following the same path by considering sequences of non-negative numbers which are not "too far" from the natural numbers. In particular, we examine the consequences of such perturbations on the noncommutative reading of the complex plane in terms of its probabilistic, functional, and localization aspects.