We study the description of Kadison-Schwarz type quantum quadratic operators (q.q.o.) acting from M2(C) into M2(C)⊗M2(C). Note that such kind of operators is a generalization of quantum convolution. By means of such a description we provide an example of q.q.o. which is not a Kadison-Schwartz operator. Moreover, we study dynamics of an associated nonlinear (i.e., quadratic) operators acting on the state space of M2(C).
ASJC Scopus subject areas
- Applied Mathematics