Talks

coffee, tea, cookies at 16:00 in the main hall
Monday 16:30-17:30
Seminar room 1+2
- monthly seminars -
Seminar room 4
- weekly seminars -
Monday 11:00-12:00
Room 1D1
Wednesday 16:30 - 17:30
Seminar room 1D1
Thursday 14:00-15:00
Seminar room 4

 

 

 

Talks in chronological order

17 Oct 2019
02:00 PM

Quantum Many Body Dynamics of Non-Ergodic Systems: From Localisation to Glassiness

Schiro Marco (CNRS, IPhT/CEA, Saclay)

Interacting non integrable quantum many body systems are expected to reach thermal equilibrium when isolated from their environment and let evolve under their own quantum dynamics. Exceptions to this paradigm can emerge in presence of quenched random disorder, due to many body localization (MBL) or quantum glassiness. Those two robust scenarios for ergodicity breaking have recently attracted considerable interest both from a purely theoretical viewpoint and for their implications on the robustness of future quantum technologies. In this talk I will study the quantum dynamics of prototype models for MBL and quantum glassy systems. I will first introduce a theoretical framework based on flow equations to study the properties MBL systems, in particular the emergence of localised integral of motions, and their dynamics. Then I will consider a model of quantum glass and study its isolated dynamics after a quantum quench. I will show that, contrary to the conventional wisdom based on thermodynamics, quantum fluctuations and non equilibrium effects result in enhanced glassiness and ageing behavior.

Seminarroom 4
21 Oct 2019
04:30 PM

Colloquium: Fluid flows shaping morphology

Dr. Karen Alim (Max Planck Institute for Dynamics and Self-Organization Goettingen; Technische Universität in München)

Fluid flows can induce long-ranged interactions and propagate information on large scales. Especially during the development of an organism, coordination on large scales is essential. What are the principal mechanisms of how fluid flows induce, transmit and respond to biological signals and thus control morphology? Fluid flows are particularly prominent during the growth and adaptation of transport networks. Here, the network-forming slime mold Physarum polycephalum emerged as a model system. Investigating the pivotal role of fluid flows in this live transport network we find that flows are patterned in a peristaltic wave across the network thereby optimizing transport. In fact, flows are hijacked by signals to propagate throughout the network. This simple mechanism is sufficient to explain surprisingly complex dynamics of the organism like scaling of peristaltic wave with network size and finding the shortest path through a maze.

Seminarroom 1+2 iCal Event
24 Oct 2019
10:00 AM

IMPRS Journal Club: Diagonalization of Quadratic Boson and Fermion Hamiltonians

Sebastián Felipe Mantilla Serrano (MPI-PKS)

Seminarroom 3 iCal Event
28 Oct 2019
04:30 PM

Colloquium: tba

Prof. Jonathan Simon (Chicago University, USA)

Seminarroom 1+2 iCal Event
13 Nov 2019
04:00 PM

IMPRS Seminar: tba

Klaus Ziegler (University of Augsburg)

Seminarroom 4 iCal Event
13 Nov 2019
05:15 PM

IMPRS Seminar: tba

Jakub Krawczyk (ILTSR Wroclaw)

Seminarroom 4 iCal Event
14 Nov 2019
02:00 PM

tba

Sergey Kafanov (Lancaster University)

Seminarroom 4 iCal Event
18 Nov 2019
04:30 PM

Colloquium: tba.

Seminarroom 1+2 iCal Event
25 Nov 2019
04:30 PM

Colloquium: tba

Prof. Dr. Laurens W. Molenkamp (Universität Würzburg)

Seminarroom 1+2 iCal Event
28 Nov 2019
02:00 PM

tba

Silvia Viola-Kusminskiy (Max Planck Institute for the Science of Light)

Seminarroom 4 iCal Event
04 Dec 2019
03:30 PM

IMPRS Seminar: tba

Johannes Knolle (TU Munich)

Seminarroom 4 iCal Event
04 Dec 2019
04:45 PM

IMPRS Seminar: tba

Santanu Dey (TU Dresden)

Seminarroom 4 iCal Event
09 Jan 2020
02:00 PM

Activated glassy dynamics in rough landscapes: new results, ideas and perspectives

Giulio Biroli (CEA Saclay)

Developing a theory of activated dynamics is one of the most challenging problems of disordered systems. Activated glassy dynamics is central in many different contexts both in physics and beyond, e.g. in computer science and biology. In this talk, after a general introduction, I will describe recent research works aimed at characterising the activated dynamics of mean-field glassy systems. In particular I will discuss numerical results on the random energy model and variants, and analytical results on the organization of barriers in the p-spin spherical model.

Seminarroom 4 iCal Event