found: Work cat.: 92-29580: Ohya, M. Quantum entropy and its use, c1993(The birthplace of quantum entropy was in quantum statistical mechanics. Quantum entropy is not a single concept but rather a family of notions which started with the von Neumann entropy of a density matrix and has developed in a number of directions. The heritage of quantum entropies from quantum mechanics is their strong relation to Hilbert space.)
found: Sci. cit. index. subject index, 1989:v. 20, col. 70032, under Quantum--entropy.
notfound: INIS:Thes.;INSPEC;NASA;McGraw-Hill dict. sci. tech.
