A Dirac fermion on a generalized Ellis-Bronnick wormhole surface with imaginary mass shows sequences of exceptional points whose location depends on the wormhole radius and deformation parameter.
Electronic properties of a nanotorus
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abstract
In this paper we study the properties of an electron trapped on a torus surface. We consider the influence of surface curvature on the spectrum and the behaviour of the wave function. In addition, the effects of external electric and magnetic fields were explored. Two toroid configurations were considered, namely, a torus-like configuration and a ring-like configuration both in agreement with experimental data. We also obtain the bound states and discuss the role of geometry on the Landau levels.
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Non-hermitian phase transitions on a generalized Ellis-Bronnikov wormhole bridge
A Dirac fermion on a generalized Ellis-Bronnick wormhole surface with imaginary mass shows sequences of exceptional points whose location depends on the wormhole radius and deformation parameter.