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Mainz 2017 – scientific programme

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SYDD: Symposium Driven-dissipative Quantum Systems

SYDD 1: Driven-Dissipative Quantum Systems

SYDD 1.1: Invited Talk

Monday, March 6, 2017, 14:30–15:00, P 1

Controlling (?) Quantum Dynamics with Open Systems — •Dieter Meschede — Institut für Angewandte Physik, Universität Bonn, Bonn, Germany

In the real world quantum systems are always coupled to their environment, called a reservoir. They are therefore called ``open systems" for which a simple hamiltonian description is insufficient. Coupling to the environment makes especially quantum superposition states very fragile which impairs applications in e.g. quantum information processing: In most cases the environment drives quantum systems into eigenstates defined by the measurement apparatus of the observer.

In a new line of research activities experimenters and theorist try to turn the game around: tame the environment (``control the open system") in such a way that interesting quantum dynamical processes can be initiated including e.g. the creation of entangled few particle states and the creation of novel states of matter in atomic many body systems.

In this presentation I will review the background of open system control physics and give an overview of some current research activities with special regard to experimental control.

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