Wickramasekara, Sujeev Gamov vectors in the Bakamjian-Thomas construction. (English) Zbl 1146.81046 J. Geom. Symmetry Phys. 11, 67-75 (2008). Summary: We show that the Bakamjian-Thomas construction for relativistic direct interactions can be extended to describe resonances by irreducible representations of the causal Poincaré semigroup. These representations are generated by a Poincaré algebra that incorporates interactions and are characterized by the complex pole position and spin of the resonance. MSC: 81U05 \(2\)-body potential quantum scattering theory 81R05 Finite-dimensional groups and algebras motivated by physics and their representations 70H40 Relativistic dynamics for problems in Hamiltonian and Lagrangian mechanics PDF BibTeX XML Cite \textit{S. Wickramasekara}, J. Geom. Symmetry Phys. 11, 67--75 (2008; Zbl 1146.81046)