David Sutter

OS Mathematical Physics November 25 16:00

Chain rules for quantum relative entropies

The chain rule for the entropy allows us to view the entropy of a large composite system as a sum of conditional entropies over small subsystems. This property is one of the reasons why the entropy is used as a tool within different areas of physics. In this talk I present new chain rules for different relative entropies and discuss on their applications in quantum information science.
[Based on joint work with Kun Fang, Omar Fawzi, and Renato Renner]