Title :
Quantum data processing
Author :
Ahlswede, Rudolf ; Löber, Peter
Author_Institution :
Fak. fur Math., Bielefeld Univ., Germany
fDate :
1/1/2001 12:00:00 AM
Abstract :
We prove a data processing inequality for quantum communication channels, which states that processing a received quantum state may never increase the mutual information between input and output states
Keywords :
information theory; quantum communication; telecommunication channels; data processing inequality; input states; mutual information; output states; quantum communication channel; received quantum state; Communication channels; Data processing; Entropy; Information theory; Linear matrix inequalities; Mutual information; Probability distribution; Quantum mechanics; Stochastic processes; Upper bound;
Journal_Title :
Information Theory, IEEE Transactions on
