Concepts of a quantum information theory of many letters
Abstract
Description
A theoretical framework is presented allowing the treatment of quantum messages with components of variable length. To this aim a many-letter space, similiar to the Fock space, is constructed, generalizing the standard quantum information theory of block messages of fixed length. In the many-letter space a length operator can be defined measuring the length of a quantum message, whose eigenspaces are the block Hilbert spaces used in the standard theory.
9 pages, revtex, no figures. Version 2.1 beta. The original paper has been splitted into two pieces. This is the first part
9 pages, revtex, no figures. Version 2.1 beta. The original paper has been splitted into two pieces. This is the first part