Notes on coarse grainings and functions of observables
Abstract
Using the Naimark dilation theory we investigate the question under what conditions an observable which is a coarse graining of another observable is a function of it. To this end, conditions for the separability and for the Boolean structure of an observable are given.
- Publication:
-
Reports on Mathematical Physics
- Pub Date:
- April 2005
- DOI:
- 10.1016/S0034-4877(05)80030-8
- arXiv:
- arXiv:quant-ph/0411136
- Bibcode:
- 2005RpMP...55..241D
- Keywords:
-
- Quantum Physics