State Evolution and Trace-Preserving Completely Positive Maps


Until now, we have considered only quantum measurements among operations on quantum systems. In order to perform effective information processing with quantum systems, we should manipulate a wider class of state operations. This chapter examines what kinds of operations are allowed on quantum systems. The properties of these operations will also be examined.


Quantum System Relative Entropy State Evolution Strong Subadditivity Quantum Mutual Information 
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© Springer-Verlag Berlin Heidelberg 2006

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