Entanglement, which-way measurements, and a quantum erasure
Quantum Physics
2010-11-16 v2 Popular Physics
Abstract
We present a didactical approach to the which-way experiment and the counterintuitive effect of the quantum erasure for one-particle quantum interferences. The fundamental concept of entanglement plays a central role and highlights the complementarity between quantum interference and knowledge of which path is followed by the particle.
Cite
@article{arxiv.0911.2072,
title = {Entanglement, which-way measurements, and a quantum erasure},
author = {Christian Ferrari and Bernd Braunecker},
journal= {arXiv preprint arXiv:0911.2072},
year = {2010}
}
Comments
5 pages, 4 figures; with some clarifications and added references