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- Title
Evolution of superoscillations for spinning particles.
- Authors
Colombo, Fabrizio; Pozzi, Elodie; Sabadini, Irene; Wick, Brett D.
- 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.
- Subjects
PARTICLE spin; DIFFERENTIAL operators; QUANTUM mechanics; MAGNETIC particles; FUNCTION spaces; INTEGRAL functions; SCHRODINGER equation
- Publication
Proceedings of the American Mathematical Society, Series B, 2023, Vol 10, p129
- ISSN
2330-1511
- Publication type
Article
- DOI
10.1090/bproc/159