Quantum dynamical entropy revisited

Volume 43 / 1998

Thomas Hudetz Banach Center Publications 43 (1998), 241-251 DOI: 10.4064/-43-1-241-251


We define a new quantum dynamical entropy for a C*-algebra automorphism with an invariant state (and for an appropriate 'approximating' subalgebra), which entropy is a 'hybrid' of the two alternative definitions by Connes, Narnhofer and Thirring resp. by Alicki and Fannes (and earlier, Lindblad). We report on this entropy's properties and on three examples.


  • Thomas Hudetz

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