Quantum magnetic billiards: boundary conditions and gauge transformations
arXiv:2109.10275 · doi:10.1016/j.aop.2022.168914
Abstract
We study admissible boundary conditions for a charged quantum particle in a two-dimensional region subjected to an external magnetic field, i.e. a quantum magnetic billiard. After reviewing some physically interesting classes of admissible boundary conditions (magnetic Robin and chiral boundary conditions), we turn our attention to the role of gauge transformations in a magnetic billiard: in particular, we introduce gauge covariant boundary conditions, and find a sufficient condition for gauge covariance which is satisfied by all the aforementioned examples.
arXiv comment13 pages, 2 figures; typos corrected
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