Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-10-12
Int.J.Theor.Phys.48:2177-2189,2009
Physics
High Energy Physics
High Energy Physics - Theory
14 pages, no figure
Scientific paper
10.1007/s10773-009-9999-8
We investigate the survival of symmetries in a relativistic system of two mutually interacting bosons coupled with an external field, when this field is "strongly" translation invariant in some directions and additionally remains unchanged by other isometries of spacetime. Since the relativistic interactions cannot be composed additively, it is not a priori garanteed that the two-body system inherits all the symmetries of the external potential. However, using an ansatz which permits to preserve the compatibility of the mass-shell constraints in the presence of the field, we show how "surviving isometries" can actually be implemented in the two-body wave equations.
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