Remarks on BEC on graphs
arXiv:1705.00820 · doi:10.1142/S0129055X17500246
Abstract
We consider Bose--Einstein condensation (BEC) on graphs with transient adjacency matrix and obtain a quasi-free state exhibiting BEC is non-factor and decompose into generalized coherent states. We review necessary and sufficient conditions that a generalized coherent state is faithful, factor, and pure and generalized coherent states are quasi-equivalent as well.
18 pages, Revised version, to appear in Reviews in Mathematical Physics