%0 Journal Article
%T Multichannel Framework for Singular Quantum Mechanics
%A Horacio E. Camblong
%A Luis N. Epele
%A Huner Fanchiotti
%A Carlos A. Garcia Canal
%A Carlos R. Ordonez
%J Physics
%D 2013
%I arXiv
%R 10.1016/j.aop.2013.10.005
%X A multichannel S-matrix framework for singular quantum mechanics (SQM) subsumes the renormalization and self-adjoint extension methods and resolves its boundary-condition ambiguities. In addition to the standard channel accessible to a distant ("asymptotic") observer, one supplementary channel opens up at each coordinate singularity, where local outgoing and ingoing singularity waves coexist. The channels are linked by a fully unitary S-matrix, which governs all possible scenarios, including cases with an apparent nonunitary behavior as viewed from asymptotic distances.
%U http://arxiv.org/abs/1307.0834v2