Universality of local weak interactions and its application for interferometric alignment
Quantum Physics
2019-04-16 v3
Abstract
The modification of the effect of interactions of a particle as a function of its pre- and postselected states is analyzed theoretically and experimentally. The universality property of this modification in the case of local interactions of a spatially pre- and postselected particle has been found. It allowed to define an operational approach for characterization of the presence of a quantum particle in a particular place: the way it modifies the effect of local interactions. The experiment demonstrating this universality property provides an efficient interferometric alignment method, in which the beam on a single detector throughout one phase scan yields all misalignment parameters.
Keywords
Cite
@article{arxiv.1804.05400,
title = {Universality of local weak interactions and its application for interferometric alignment},
author = {Jan Dziewior and Lukas Knips and Demitry Farfurnik and Katharina Senkalla and Nimrod Benshalom and Jonathan Efroni and Jasmin Meinecke and Shimshon Bar-Ad and Harald Weinfurter and Lev Vaidman},
journal= {arXiv preprint arXiv:1804.05400},
year = {2019}
}
Comments
12 pages, 7 figures