Macroscopicity of Mechanical Quantum Superposition States

Author(s): S. Nimmrichter, K. Hornberger

Journal: Physical Review Letters

Volume: 110

Page(s): 160403

Year: 2013

DOI Number: 10.1103/PhysRevLett.110.160403

Link: Link to publication


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.


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