The Weyl–Heisenberg ensemble: hyperuniformity and higher Landau levels

LD Abreu, JM Pereira, JL Romero… - Journal of Statistical …, 2017 - iopscience.iop.org
Journal of Statistical Mechanics: Theory and Experiment, 2017iopscience.iop.org
Weyl–Heisenberg ensembles are a class of determinantal point processes associated with
the Schrödinger representation of the Heisenberg group. Hyperuniformity characterizes a
state of matter for which (scaled) density fluctuations diminish towards zero at the largest
length scales. We will prove that Weyl–Heisenberg ensembles are hyperuniform. Weyl–
Heisenberg ensembles include as a special case a multi-layer extension of the Ginibre
ensemble modeling the distribution of electrons in higher Landau levels, which has recently …
Abstract
Weyl–Heisenberg ensembles are a class of determinantal point processes associated with the Schrödinger representation of the Heisenberg group. Hyperuniformity characterizes a state of matter for which (scaled) density fluctuations diminish towards zero at the largest length scales. We will prove that Weyl–Heisenberg ensembles are hyperuniform. Weyl–Heisenberg ensembles include as a special case a multi-layer extension of the Ginibre ensemble modeling the distribution of electrons in higher Landau levels, which has recently been object of study in the realm of the Ginibre-type ensembles associated with polyanalytic functions. In addition, the family of Weyl–Heisenberg ensembles includes new structurally anisotropic processes, where point-statistics depend on the different spatial directions, and thus provide a first means to study directional hyperuniformity.
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