Testing macroscopic realism through high-mass interferometry

Author(s)
Clive Emary, J. P. Cotter, Markus Arndt
Abstract

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.

Organisation(s)
Quantum Optics, Quantum Nanophysics and Quantum Information
External organisation(s)
University of Hull
Journal
Physical Review A
Volume
90
No. of pages
5
ISSN
1050-2947
DOI
https://doi.org/10.1103/PhysRevA.90.042114
Publication date
10-2014
Peer reviewed
Yes
Austrian Fields of Science 2012
103025 Quantum mechanics, 103026 Quantum optics
Keywords
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Portal url
https://ucrisportal.univie.ac.at/en/publications/26acfe45-ff42-49b0-9a05-0376739a2a34