Detecting the degree of macroscopic quantumness using an overlap measurement
Quantum Physics
2017-01-17 v2
Abstract
We investigate how to experimentally detect a recently proposed measure to quantify macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011)], namely, "macroscopic quantumness" . Schemes based on overlap measurements for harmonic oscillator states and for qubit states are extensively investigated. Effects of detection inefficiency and coarse-graining are analyzed in order to assess feasibility of the schemes.
Keywords
Cite
@article{arxiv.1404.7256,
title = {Detecting the degree of macroscopic quantumness using an overlap measurement},
author = {Hyunseok Jeong and Changsuk Noh and Seunglee Bae and Dimitris G. Angelakis and Timothy C. Ralph},
journal= {arXiv preprint arXiv:1404.7256},
year = {2017}
}
Comments
12 pages, 8 figures, to be published in J. Opt. Soc. Am. B