Pseudo-hermitian interaction between an oscillator and a spin-1/2 particle in the external magnetic field

Modern Physics Letters A (Impact Factor: 1.2). 01/2005; 20(9). DOI: 10.1142/S0217732305016488
Source: arXiv


We consider a spin half particle in the external magnetic field which couples
to a harmonic oscillator through some pseudo-hermitian interaction. We find
that the energy eigenvalues for this system are real even though the
interaction is not PT invariant.

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