R. Alicki, H. Narnhofer
Comparison of Dynamical Entropies for the Noncommutative Shifts
The paper is published: Lett. Math. Phys. 33, 3 (1995) 241-247

MSC:

46L55 Noncommutative dynamical systems, See also {28Dxx, 54H20,

46N50 Applications in quantum physics

28D20 Entropy and other invariants

Abstract: It is shown that two definitions of dynamical entropy for noncommutative
shifts give different results.

Keywords: invariant state, von Neumann algebra, automorphism, dynamical entropies, $\text {II}\sb 1$-factor