A size criterion for macroscopic superposition states
量子物理
2009-11-10 v2
摘要
An operational measure to quantify the sizes of some ``macroscopic quantum superpositions'', realized in recent experiments, is proposed. The measure is based on the fact that a superposition presents greater sensitivity in interferometric applications than its superposed constituent states. This enhanced sensitivity, or ``interference utility'', may then be used as a size criterion among superpositions.
引用
@article{arxiv.quant-ph/0310193,
title = {A size criterion for macroscopic superposition states},
author = {Gunnar Björk and Piero G. Luca Mana},
journal= {arXiv preprint arXiv:quant-ph/0310193},
year = {2009}
}
备注
LaTeX2e-REVTeX4, 9 pages, 3 figures. V2: introduction and discussion slightly altered