Unusual Interaction of a Pre-and-Post-Selected Particle
Abstract
Weak value is increasingly acknowledged as an important research tool for probing quantum pre- and post-selected ensembles, where some extraordinary phenomena occur. We generalize this concept to the broader notion of "weak potential" which enables predicting the interactions between particles when one of them is pre-/post-selected and the interaction potential is small. A harmonic oscillator is considered, undergoing weak position and momentum measurements between strong position measurement, and shown to possess peculiar physical properties, affecting the momentum rather than the position of another oscillator interacting with it.
Keywords
Cite
@article{arxiv.1208.3203,
title = {Unusual Interaction of a Pre-and-Post-Selected Particle},
author = {Yakir Aharonov and Eliahu Cohen and Shay Ben-Moshe},
journal= {arXiv preprint arXiv:1208.3203},
year = {2013}
}
Comments
6 pages, 1 figure. This is a preprint of a lecture given by E.C in the "International Conference on New Frontiers in Physics", Crete, June 2012