The Internet Archive has a preservation copy of this work in our general collections.
The file type is
Quantum cellular automata (QCA) are reviewed, including early and more recent proposals. QCA are a generalization of (classical) cellular automata (CA) and in particular of reversible CA. The latter are reviewed shortly. An overview is given over early attempts by various authors to define one-dimensional QCA. These turned out to have serious shortcomings which are discussed as well. Various proposals subsequently put forward by a number of authors for a general definition of one- andarXiv:0808.0679v1 fatcat:3n6hwddb7rhflenqcxmmalh7wy