We review selected advances in the theoretical understanding of complex quantum many-
body systems with regard to emergent notions of quantum statistical mechanics. We cover …

If a quantum system A, which is initially correlated to another system, E, undergoes an
evolution separated from E, then the correlation to E generally decreases. Here, we study …

A natural measure for the amount of quantum information that a physical system E holds
about another system A= A 1,..., A n is given by the min-entropy H min (A| E). In particular …

Decoupling has become a central concept in quantum information theory, with applications
including proving coding theorems, randomness extraction and the study of conditions for …

The decoupling technique is a fundamental tool in quantum information theory with
applications ranging from thermodynamics to many-body physics and black hole radiation …

We prove upper bounds on the rate, called" mixing rate", at which the von Neumann entropy
of the expected density operator of a given ensemble of states changes under non-local …

Diese Arbeit lotet aus, inwieweit thermodynamisches Verhalten auf der Basis von
Quantenmechanik erklärt werden kann. Behandelt werden insbesondere: Equilibrierung …