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arXiv:0802.2505 · Physics Letters A

symmetry and degeneracy from SUSY QM of a neutron in the magnetic field of a linear current

D. Martínez, V. D. Granados, R. D. Mota

Published Oct 21, 2005• 9 citations
arXivHTMLPDF
DOI
10.1016/j.physleta.2005.10.001

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We find that in a supersymmetric quantum mechanics (SUSY QM) system, in addition to supersymmetric algebra, an associated SU(2) algebra can be obtained by using semiunitary (SUT) operator and projection operator, and the relevant constants of motion can be constructed. Two typical quantum systems are investigated as examples to demonstrate the above finding. The first example is the quantum system of a nonrelativistic charged particle moving in x-y plane and coupled to a magnetic field along z-axis. The second example is provided with the Dirac particle in a magnetic field. Similarly there exists an SU τ (2) ⊗ SU σ (2) symmetry in the context of the relativistic Pauli Hamiltonian squared. We show that there exists also an SU(2) symmetry associated with the supersymmetry of the Dirac particle.