Published February 7, 2014
| Version v1
Journal article
On coexistence and joint measurability of rank-1 quantum observables
Creators
- 1. Department of Physics and Astronomy, Turku Centre for Quantum Physics, University of Turku, FI-20014 Turku (Finland)
Description
We show that a rank-1 quantum observable (POVM) M is jointly measurable with a quantum observable M′ exactly when M′ is a smearing of M. If M is extreme, rank-1 and discrete, then M and M′ are coexistent if and only if they are jointly measurable. (fast track communications)
Availability note (English)
Available from http://dx.doi.org/10.1088/1751-8113/47/5/052002Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. A, Mathematical and Theoretical (Online)
- Journal Volume
- 47
- Journal Issue
- 5
- Journal Page Range
- [12 p.]
- ISSN
- 1751-8121
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46038097
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- INFORMATION THEORY; QUANTUM INFORMATION; QUANTUM MECHANICS
- Descriptors DEC
- INFORMATION; MECHANICS