English

FK-DLR properties of a quantum multi-type bose-gas with a repulsive interaction

Mathematical Physics 2015-06-16 v2 math.MP

Abstract

The paper extends earlier results from \cite{SK}, \cite{SKS} about infinite-volume quantum bosonic states (FK-DLR states) to the case of multi-type particles with non-negative interactions. (An example is a quantum Widom--Rowlinson model.) Following the strategy from \cite{SK}, \cite{SKS}, we establish that, for the values of fugacity z(0,1)z\in (0,1) and inverse temperature β>0\beta >0, finite-volume Gibbs states form a compact family in the thermodynamic limit. Next, in dimension two we show that any limit-point state (an FK-DLR state in the terminology adopted in \cite{SK}, \cite{SKS}) is translation-invariant.

Keywords

Cite

@article{arxiv.1307.0054,
  title  = {FK-DLR properties of a quantum multi-type bose-gas with a repulsive interaction},
  author = {Y. Suhov and I. Stuhl},
  journal= {arXiv preprint arXiv:1307.0054},
  year   = {2015}
}