Impossibility to describe repulsion with contact interaction
classification
❄️ cond-mat.str-el
cond-mat.stat-mech
keywords
contactinteractionsalwaysappearanceargumentsattractivebehaviourbose
read the original abstract
Contact interactions always lead to attractive behaviour. Arguments are presented to show why a repulsive interacting system, e.g. Bose gases, cannot be described by contact interactions and corresponding treatments are possibly obscured by the appearance of bound states. The usually used cut-offs are identified as finite range parameters.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.