Evolution of superoscillations for spinning particles

Fabrizio Colombo; Elodie Pozzi; Irene Sabadini; Brett Wick

doi:10.1090/bproc/159

journal article Open Access Apr 11, 2023

Evolution of superoscillations for spinning particles

Fabrizio Colombo Elodie Pozzi Irene Sabadini Brett Wick

Proceedings of the American Mathematical Society, Series B Vol. 10 No. 11 pp. 129-143 · American Mathematical Society (AMS)

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Abstract

Superoscillating functions are band-limited functions that can oscillate faster than their fastest Fourier component. These functions appear in various fields of science and technology, in particular they were discovered in quantum mechanics in the context of weak values introduced by Y. Aharonov and collaborators. The evolution problem of superoscillatory functions as initial conditions for the Schrödinger equation is intensively studied nowadays and the supershift property of the solution of Schrödinger equation encodes the persistence of superoscillatory phenomenon during the evolution. In this paper, we prove that the evolution of a superoscillatory initial datum for spinning particles in a magnetic field has the supershift property. Our techniques are based on the exact propagator of spinning particles, the associated infinite order differential operators and their continuity on suitable spaces of entire functions with growth conditions.

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Details

Published: Apr 11, 2023
Vol/Issue: 10(11)
Pages: 129-143
License: View

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Cite This Article

Fabrizio Colombo, Elodie Pozzi, Irene Sabadini, et al. (2023). Evolution of superoscillations for spinning particles. Proceedings of the American Mathematical Society, Series B, 10(11), 129-143. https://doi.org/10.1090/bproc/159

Evolution of superoscillations for spinning particles

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