Testing macroscopic realism through high-mass interferometry
Clive Emary, Joseph P. Cotter, Markus Arndt
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.
arXiv:1408.1626•Physical Review A•Oct 21, 2014•8 citations