EPR before EPR: a 1930 Einstein-Bohr thought experiment revisited
Abstract
In 1930 Einstein argued against consistency of the time-energy uncertainty relation by discussing a thought experiment involving a measurement of mass of the box which emitted a photon. Bohr seemingly triumphed over Einstein by arguing that the Einstein's own general theory of relativity saves the consistency of quantum mechanics. We revisit this thought experiment from a modern point of view at a level suitable for undergraduate readership and find that neither Einstein nor Bohr was right. Instead, this thought experiment should be thought of as an early example of a system demonstrating nonlocal "EPR" quantum correlations, five years before the famous Einstein-Podolsky-Rosen paper.
Keywords
Cite
@article{arxiv.1203.1139,
title = {EPR before EPR: a 1930 Einstein-Bohr thought experiment revisited},
author = {H. Nikolic},
journal= {arXiv preprint arXiv:1203.1139},
year = {2015}
}
Comments
11 pages, revised, accepted for publication in Eur. J. Phys