ep - t h / 02 04 22 0 v 1 2 5 A pr 2 00 2 N = 2 - Supersymmetric Dynamics of a Spin - 1 / 2 Particle in an Extended External Field
نویسنده
چکیده
One considers the quantum dynamics of a charged spin-12 particle in an extended external eletromagnetic field that arises from the reduction of a 5dimensional Abelian gauge theory. The non-relativistic regime of the reduced 4D-dynamics is worked out and one identifies the system as a sector of an N=2-supersymmetric quantum-mechanical dynamics. The full supersymmetric model is studied and one checks the algebra of the fermionic charges; the conclusion is that no central charge drops out. The possible rôle of the extra external fields, a scalar and a magnetic-like field, is discussed. Typeset using REVTEX 1
منابع مشابه
ar X iv : h ep - t h / 02 04 04 4 v 1 4 A pr 2 00 2 S - matrix for a spin 12 particle in a Coulomb + Scalar potential
The S-matrix for a spin 1/2 particle in the presence of a potential which is the sum of the Coulomb potential Vc = −A1/r and a Lorentz scalar potential Vs = −A2/r is calculated. PACS numbers:03.65.Pm,11.80.-m ⋆ e-mail:[email protected]
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One considers the quantum dynamics of a charged spin-12 particle in an extended external eletromagnetic field that arises from the reduction of a 5dimensional Abelian gauge theory. The non-relativistic regime of the reduced 4D-dynamics is worked out and one identifies the system as a sector of an N=2-supersymmetric quantum-mechanical dynamics. The full supersymmetric model is studied and one ch...
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