Abstract
We propose an experimentally accessible, objective measure for the macroscopicity of superposition states in mechanical quantum systems. Based on the observable consequences of a minimal, macrorealist extension of quantum mechanics, it allows one to quantify the degree of macroscopicity achieved in different experiments.
- Received 15 May 2012
DOI:https://doi.org/10.1103/PhysRevLett.110.160403
© 2013 American Physical Society
Synopsis
Quantum-ness Put on the Scale
Published 18 April 2013
A new standard for measuring the relative size of a quantum object could help in comparing different experiments at the quantum-classical boundary.
See more in Physics