Deciphering complex quantum systems (Prof. A. Buchleitner)
- Date: Jul 3, 2018
- Time: 02:30 PM - 03:30 PM (Local Time Germany)
- Speaker: Prof. Dr. Andreas Buchleitner
- Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universität Freiburg
- Room: New Lecture Hall, Room B 0.32
- Host: MPQ
Much as for classically chaotic systems, accurate predictions of the
long-time dynamics, or an exhaustive description of the very structure of such
a system’s state turns quickly prohibitive as the size of state space is
increased. This has been a concern of theory for long, and recently receives
renewed interest as also quantum optics labs turn “complex”, where a stunning
level of control over elementary constituents now makes contact with the
exponential proliferation of alternative transition amplitudes. To characterise
and to certify such systems, let alone to actively control them, we need to
identify robust, coarse-grained quantifiers which allow to discriminate their
distinctive features, on the basis of experimentally accessible and scalable,
yet necessarily incomplete
information. We will have a closer look at some
exemplary certification problems, with a special emphasis on
indistinguishability as a specific source of complexity in many-particle
quantum dynamics.