Physics – Quantum Physics
Scientific paper
2002-09-30
Phys. Rev. A 67, 022106 (2003)
Physics
Quantum Physics
8 pages, small additions on cloning and on definitions of delta A_mf, etc
Scientific paper
10.1103/PhysRevA.67.022106
The effects of any quantum measurement can be described by a collection of measurement operators {M_m} acting on the quantum state of the measured system. However, the Hilbert space formalism tends to obscure the relationship between the measurement results and the physical properties of the measured system. In this paper, a characterization of measurement operators in terms of measurement resolution and disturbance is developed. It is then possible to formulate uncertainty relations for the measurement process that are valid for arbitrary input states. The motivation of these concepts is explained from a quantum communication viewpoint. It is shown that the intuitive interpretation of uncertainty as a relation between measurement resolution and disturbance provides a valid description of measurement back action. Possible applications to quantum cryptography, quantum cloning, and teleportation are discussed.
No associations
LandOfFree
Uncertainty characteristics of generalized quantum measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Uncertainty characteristics of generalized quantum measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uncertainty characteristics of generalized quantum measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-694204