On the spectrum of an operator in truncated Fock space
Abstract
We study the spectrum of an operator matrix arising in the spectral analysis of the energy operator of the spin-boson model of radioactive decay with two bosons on the torus. An analytic description of the essential spectrum is established. Further, a criterion for the finiteness of the number of eigenvalues below the bottom of the essential spectrum is derived.
Date Issued
2018
Publication Type
Book Section
Subject(s)
Language(s)
en
Editor(s)
Alpay, Daniel | |
Kirstein, Bernd |
Additional Credits
Publisher
Birkhäuser/Springer
ISSN
0255-0156
ISBN
978-3-319-68848-0
Access(Rights)
restricted