Abstract
Quantum backflow is an interference effect in which a matter-wave packet comprised of only plane waves with non-negative momenta exhibits negative probability flux. Here we show that this effect is mathematically equivalent to the appearance of classically forbidden probability flux when a matter-wave packet, initially confined to a semi-infinite line, expands in free space.
- Received 5 March 2019
DOI:https://doi.org/10.1103/PhysRevA.99.043626
©2019 American Physical Society
Physics Subject Headings (PhySH)
General Physics