Topological Quantum Numbers of Relativistic Two-Particle Mixtures

Details Topological Quantum Numbers of Relativistic Two-Particle Mixtures Topological Quantum Numbers of Relativistic Two-Particle Mixtures

2003-05-26

arxiv.org/abs/hep-th/0305227v1

Physics

High Energy Physics

High Energy Physics - Theory

48 pages and 2 figures, http://www.theo2.physik.uni-stuttgart.de/institut/sorg/sorg.html

Scientific paper

The relativistic two-particle quantum mixtures are studied from the topological point of view. The mixture field variables can be transformed in such a way that a kinematical decoupling of both particle degrees of freedom takes place with a residual coupling of purely algebraic nature ("exchange coupling"). Both separated sets of particle variables induce a certain map of space-time onto the corresponding "exchange groups", i.e. SU(2) and SU(1,1), so that for the compact case (SU(2)) there arises a pair of winding numbers, either odd or even, which are a topological characteristic of the two-particle Hamiltonian.

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