Tripartite nonseparability in classical optics
Abstract
It is possible to prepare classical optical beams which cannot be characterized by a tensor product of vectors describing each of their degrees of freedom. Here we report the experimental creation of such a non-separable, tripartite GHZ-like state of path, polarization and transverse modes of a classical laser beam. We use a Mach-Zehnder interferometer with an additional mirror and other optical elements to perform measurements that violate Mermin's inequality. This demonstration of a classical optical analogue of tripartite entanglement paves the path to novel optical applications inspired by multipartite quantum information protocols.
- Publication:
-
Optics Letters
- Pub Date:
- December 2016
- DOI:
- 10.1364/OL.41.005797
- arXiv:
- arXiv:1511.02265
- Bibcode:
- 2016OptL...41.5797B
- Keywords:
-
- Quantum Physics
- E-Print:
- 5 pages, 5 figures