Equivalence between quantum backflow and classically forbidden probability flow in a diffraction-in-time problem
Research output: Contribution to journal › Article
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.
|Journal||Physical Review A|
|Publication status||Published - 25 Apr 2019|
Rights statement: Arseni Goussev. 'Equivalence between quantum backflow and classically forbidden probability flow in a diffraction-in-time problem.' Phys. Rev. A 99, 043626. © 2019 American Physical Society. All rights reserved.
Accepted author manuscript (Post-print), 115 KB, PDF document