Abstract
We introduce three different types of periodically-driven multiparametric two-level models whose analytical solutions are given in terms of Heun functions. These results are applied to obtain exact analytical results for certain types of periodic potentials and asymmetric double-well potentials. In particular, it is shown that under special parameter conditions, an experimentally realised periodic potential supports the exact in-gap solutions. In the asymmetric double-well potentials, some exact results of the bound-state wave functions and associated energies are found in explicit form.
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This work was supported by the National Natural Science Foundation of China under Grant No. 11565011.
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Xie, Q. Analytical results for periodically-driven two-level models in relation to Heun functions. Pramana - J Phys 91, 19 (2018). https://doi.org/10.1007/s12043-018-1596-z
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DOI: https://doi.org/10.1007/s12043-018-1596-z