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Paper detail

Vorticity of Twisted Spinor Fields

Spinor fields with a vortex structure in free space that allow them to have arbitrary integer orbital angular momentum along the direction of motion have been studied for some time. Relatively new is the observation in a certain context that the vortex center of this field structure is, unlike a classical whirlpool, not singular. We point out that there are several ways to calculate the local velocity of the spinor field and that all but one show a singular vorticity at the vortex line. That one, using the Dirac bilinear current with no derivatives, is the only one so far (to our knowledge) studied in the literature in this context and we further show how to understand an apparent conflict in the existing results.

preprint2022arXivOpen access
Andrei AfanasevCarl E. CarlsonAsmita Mukherjee
hep-phquant-ph
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Andrei AfanasevCarl E. CarlsonAsmita Mukherjee

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