Open Access

The projection spectral theorem, quasi-free states and point processes


Abstract

In this review paper, we demonstrate that several classes of point processes in a locally compact Polish space $X$ appear as the joint spectral measure of a rigorously defined particle density of a representation of the canonical anticommutation relations (CAR) or the canonical commutation relations (CCR) in a Fock space. For these representations of the CAR/CCR, the vacuum state on the corresponding $*$-algebra is quasi-free. The classes of point process that arise in such a way include determinantal and permanental point processes.

Key words: Projection spectral theorem, quasi-free state, determinantal point process, permanental point process, Poisson point process, hafnian point process.


Full Text






Article Information

TitleThe projection spectral theorem, quasi-free states and point processes
SourceMethods Funct. Anal. Topology, Vol. 31 (2025), no. 2, 136-152
DOI10.31392/MFAT-npu26_2.2025.04
Milestones  Received 27/08/2025; Revised 12/12/2025
CopyrightThe Author(s) 2025 (CC BY-SA)

Authors Information

Eugene Lytvynov
Department of Mathematics, Swansea University, Bay Campus, Swansea SA1 8EN, U.K


Export article

Save to Mendeley



Citation Example

Eugene Lytvynov, The projection spectral theorem, quasi-free states and point processes, Methods Funct. Anal. Topology 31 (2025), no. 2, 136-152.


BibTex

@article {MFAT2106,
    AUTHOR = {Eugene Lytvynov},
     TITLE = {The projection spectral theorem, quasi-free states and point processes},
   JOURNAL = {Methods Funct. Anal. Topology},
  FJOURNAL = {Methods of Functional Analysis and Topology},
    VOLUME = {31},
      YEAR = {2025},
    NUMBER = {2},
     PAGES = {136-152},
      ISSN = {1029-3531},
       DOI = {10.31392/MFAT-npu26_2.2025.04},
       URL = {https://mfat.imath.kiev.ua/article/?id=2106},
}


References

Coming Soon.

All Issues