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Trojan states of electrons guided by Bessel beams

Iwo Bialynicki-Birula·Zofia Bialynicka-Birula·Bartosz Chmura
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Abstract

Previous work [I. Bialynicki-Birula, Phys. Rev. Lett. {\bf 93}, 20402 (2004)] is extended to cover more realistic examples of electromagnetic waves, viz. the Bessel beams. It is shown that electrons may be guided by a Bessel beam with nonvanishing orbital angular momentum. The mechanism for trapping the electrons near the electromagnetic vortex line of such a wave field is the same as for the Trojan states of Rydberg electrons produced by a circularly polarized wave. The main difference is that in the present case the transverse motion of electrons in a beam is confined under the action of the electromagnetic wave alone, no additional attraction center is required. We also discuss briefly the motion of electrons in Neumann and Hankel beams.

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Iwo Bialynicki-Birula, Zofia Bialynicka-Birula, Bartosz Chmura. 2005-02-06. Trojan states of electrons guided by Bessel beams. https://arxiv.org/abs/physics/0502025

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