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S. Nimmrichter and K. Hornberger
Macroscopicity of mechanical quantum superposition states
Phys. Rev. Lett 110, 160403 (2013)

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.

(5 pages, 2 figures)   [ pdf, journal, arXiv:1205.3447 ]

supplemental material: supplements_prl9.pdf

doi:10.1103/PhysRevLett.110.160403            (c) The American Physical Society


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