Testing macroscopic realism through high-mass interferometry
Author(s): C. Emary, J. P. Cotter, M. Arndt
Journal: Phys. Rev. A
DOI Number: http://dx.doi.org/10.1103/PhysRevA.90.042114
Link: Link to publication
We define a quantum witness for high-mass matter-wave interferometers that allows us to test fundamental assumptions of macroscopic realism. We propose an experimental realization using absorptive laser gratings and show that such systems can strongly violate a macrorealistic quantum-witness equality. The measurement of the witness can therefore provide clear evidence of physics beyond macrorealism for macromolecules and nanoparticles.