Nonrelativistic spin 1/2 particle in an arbitrary non-Abelian magnetic field in two spatial dimensions

Details Nonrelativistic spin 1/2 particle in an arbitrary non-Abelian magnetic field in two spatial dimensions Nonrelativistic spin 1/2 particle in an arbitrary non-Abelian magnetic field in two spatial dimensions

2001-09-12

arxiv.org/abs/hep-ph/0109107v1

Mod.Phys.Lett.A17:95-102,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX

Scientific paper

10.1142/S0217732302006187

The (group and spin space) matrix Hamiltonian describing the dynamics of a nonrelativistic spin 1/2 particle moving in a static, but spatially dependent, non-Abelian magnetic field in two spatial dimensions is shown to take the form of an anticommutator of a nilpotent operator and its hermitian conjugate. Consequently, the (group space) matrix Hamiltonians for the two different spin projections form partners of a supersymmetric quantum mechanical system. The resulting supersymmetry algebra is exploited to explicitly construct the exact zero energy ground state wavefunction(s) for the system. The remaining eigenstates and eigenvalues of the two partner Hamiltonians form positive energy degenerate pairs.

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