Physics – Quantum Physics
Scientific paper
2003-09-26
J. Phys. A 37, 5157 (2004)
Physics
Quantum Physics
13 pages, 3 figures
Scientific paper
10.1088/0305-4470/37/19/004
We investigate quantum dynamical systems defined on a finite dimensional Hilbert space and subjected to an interaction with an environment. The rate of decoherence of initially pure states, measured by the increase of their von Neumann entropy, averaged over an ensemble of random pure states, is proved to be bounded from above by the partial entropy used to define the ALF dynamical entropy. The rate of decoherence induced by the sequence of the von Neumann projectors measurements is shown to be maximal, if the measurements are performed in a randomly chosen basis. The numerically observed linear increase of entropies is attributed to free-independence of the measured observable and the unitary dynamical map.
Alicki Robert
Lozinski Artur
Pakonski Prot
Zyczkowski Karol
No associations
LandOfFree
Quantum dynamical entropy and decoherence rate 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 Quantum dynamical entropy and decoherence rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum dynamical entropy and decoherence rate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-651290