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Quantum backflow and scattering

Bostelmann, Henning, Cadamuro, Daniela and Lechner, Gandalf 2017. Quantum backflow and scattering. Physical Review a 96 (1) , 012112. 10.1103/PhysRevA.96.012112

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Abstract

Backflow is the phenomenon that the probability current of a quantum particle on the line can flow in the direction opposite to its momentum. In this article, previous investigations of backflow, pertaining to interaction-free dynamics or purely kinematical aspects, are extended to scattering situations in short-range potentials. It is shown that backflow is a universal quantum effect which exists in any such potential, and is always of bounded spatial extent in a specific sense. The effects of reflection and transmission processes on backflow are investigated, both analytically for general potentials, and numerically in various concrete examples.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
Publisher: American Physical Society
ISSN: 1050-2947
Date of First Compliant Deposit: 25 May 2017
Date of Acceptance: 24 May 2017
Last Modified: 27 Oct 2018 17:44
URI: http://orca.cf.ac.uk/id/eprint/100890

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  • Quantum backflow and scattering. (deposited 26 May 2017 13:06) [Currently Displayed]

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