Time and Ensemble Averages in Bohmian Mechanics

Autor:	Yakir Aharonov, Marian O. Scully, Noam Erez
Rok vydání:	2004
Předmět:	Physics Quantum Physics De Broglie–Bohm theory Classical mechanics Position (vector) Quantum mechanics FOS: Physical sciences Particle Quantum Physics (quant-ph) Condensed Matter Physics Adiabatic process Mathematical Physics Atomic and Molecular Physics and Optics
Zdroj:	Physica Scripta. 69:81-83
ISSN:	1402-4896 0031-8949
DOI:	10.1238/physica.regular.069a00081
Popis:	We show that in the framework of one-dimensional Bohmian Quantum Mechanics[1], for a particle subject to a potential undergoing a weak adiabatic change, the time averages of the particle's positions typically differ markedly from the ensemble averages. We Apply this result to the case where the weak perturbing potential is the back-action of a measuring device (i.e. a protective measurement). It is shown that under these conditions, most trajectories never cross the position measured (as already shown for a particular example in [3]). Comment: 6 pages
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d52847d258af536bad506edb90f0b7c2 https://doi.org/10.1238/physica.regular.069a00081 Zobrazit plný text záznamu