Relativistic wavefunctions on the Poincare group

Details Relativistic wavefunctions on the Poincare group Relativistic wavefunctions on the Poincare group

2003-08-28

arxiv.org/abs/math-ph/0308038v2

J. Phys. A: Math. Gen. 37, 5467-5476 (2004)

Physics

Mathematical Physics

11 pages

Scientific paper

10.1088/0305-4470/37/20/014

The Biedenharn type relativistic wavefunctions are considered on the group manifold of the Poincar\'{e} group. It is shown that the wavefunctions can be factorized on the group manifold into translation group and Lorentz group parts. A Lagrangian formalism and field equations for such factorizations are given. Parametrizations of the functions obtained are studied in terms of a ten-parameter set of the Poincar\'{e} group. An explicit construction of the wavefunction for the spin 1/2 is given. A relation of the proposed description with the quantum field theory and harmonic analysis on the Poincar\'{e} group is discussed.

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