Summary
The new notion of the degree of supersymmetry is introduced on a class of a simple models related to quantum optics. This concept is valid for discerning the supersymmetry of the quantum systems with different ground-state (vacuum) structure. The examples of Hamiltonians with a certain value of the supersymmetry degree are given. The condition on the spectrum of the Hamiltonian to have lower bound results in the necessity to include multiphoton AC Stark shift of the levels together with the multiphoton Rabi frequency.
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Andreev, V.A., Lerner, P.B. Supersymmetry of multiphoton transitions. Nuov Cim A 105, 773–779 (1992). https://doi.org/10.1007/BF02799092
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DOI: https://doi.org/10.1007/BF02799092