Skip to main content

Research Repository

Advanced Search

Testing macroscopic realism through high-mass interferometry

Emary, Clive; Cotter, J. P.; Arndt, Markus


Clive Emary

J. 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.


Emary, C., Cotter, J. P., & Arndt, M. (2014). Testing macroscopic realism through high-mass interferometry. Physical review. A, 90(4), Article 042114.

Journal Article Type Article
Acceptance Date Aug 7, 2014
Online Publication Date Oct 21, 2014
Publication Date Oct 21, 2014
Deposit Date Jun 28, 2018
Journal Physical Review A
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 90
Issue 4
Article Number 042114
Public URL
Publisher URL