Q-information theory

Abstract

The q-information theory is similar to the classical one. The carrier of information is a q-system and this causes differences as well. A particular difference is that qubits carry information in double sense. First, we can encode classical bits into qubits. Second, unknown qubits carry information which is hidden and protected-as a consequence of the universal limitations of single q-state determination, cloning, or distinguishability. © 2011 Springer-Verlag Berlin Heidelberg.