English

Resolvent algebra in Fock-Bargmann representation

Functional Analysis 2022-08-16 v1 Operator Algebras

Abstract

The resolvent algebra R(X,σ)\mathcal{R}(X, \sigma) associated to a symplectic space (X,σ)(X, \sigma) was introduced by D. Buchholz and H. Grundling as a convenient model of the canonical commutation relation (CCR) in quantum mechanics. We first study a representation of R(Cn,σ)\mathcal{R}(\mathbb{C}^n, \sigma) with the standard symplectic form σ\sigma inside the full Toeplitz algebra over the Fock-Bargmann space. We prove that R(Cn,σ)\mathcal{R}(\mathbb{C}^n, \sigma) itself is a Toeplitz algebra. In the sense of R. Werner's correspondence theory we determine its corresponding shift-invariant and closed space of symbols. Finally, we discuss a representation of the resolvent algebra R(H,σ~)\mathcal{R}(\mathcal{H}, \tilde{\sigma}) for an infinite dimensional symplectic separable Hilbert space (H,σ~)(\mathcal{H}, \tilde{\sigma}). More precisely, we find a representation of R(H,σ~)\mathcal{R}(\mathcal{H}, \tilde{\sigma}) inside the full Toeplitz algebra over the Fock-Bargmann space in infinitely many variables.

Keywords

Cite

@article{arxiv.2208.06591,
  title  = {Resolvent algebra in Fock-Bargmann representation},
  author = {Wolfram Bauer and Robert Fulsche},
  journal= {arXiv preprint arXiv:2208.06591},
  year   = {2022}
}

Comments

29 pages; suggestions and questions are welcome

R2 v1 2026-06-25T01:40:56.836Z