Questioning the adequacy of certain quantum arrival-time distributions
| Autor: | Ward Struyve, Siddhant Das |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
FLUX Quantum Physics Science & Technology Gaussian Semiclassical physics FOS: Physical sciences ENSEMBLE Optics Physics Atomic Molecular & Chemical Arrival time WIGNER FUNCTION Momentum symbols.namesake Distribution (mathematics) Physical Sciences symbols Probability distribution Quantum Physics (quant-ph) Quantum Quantum fluctuation Mathematical physics |
| Popis: | It is shown that a class of exponentially decaying time-of-arrival probability distributions suggested by W{\l}odarz, Marchewka and Schuss, and Jurman and Nikoli\'c, as well as a semiclassical distribution implicit in time-of-flight momentum measurements, do not show the expected behavior for a Gaussian wave train. This casts doubts on the physical adequacy of these arrival-time proposals. In contrast, the quantum flux distribution (a special case of the Bohmian arrival-time distribution) displays the expected behavior. Comment: 6 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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