MQV Colloquium: Frank Pollmann

The MQV Colloquia feature interdisciplinary talks given by local as well as invited international experts. The colloquia, which are accessible to a worldwide audience via videoconference, cover all aspects of quantum technologies, with a focus on MQV research activities. The goal of the series is to establish and strengthen connections with quantum-technology experts worldwide and to provide a platform for education and scientific exchange for and with the local quantum ecosystem.

"Realization and Characterization of Topological States on Quantum Processors"

Frank Pollmann – TUM


The interplay of quantum fluctuations and interactions can yield novel quantum phases of matter with fascinating properties. Understanding the physics of such systems is a very challenging problem as it requires to solve quantum many body problems—which are generically exponentially hard to solve on classical computers. In this context, universal quantum computers are potentially an ideal setting for simulating the emergent quantum many-body physics. In this talk, I will discuss two different classes of quantum phases: First, we consider symmetry protected topological (SPT) phases and show that a topological phase transitions can be simulated using shallow circuits. We then utilize quantum convolutional neural networks (QCNNs) as classifiers and introduce an efficient framework to train them. Second, we focus on the realization of topological ordered phases and simulate the braiding of anyons. We then investigate phase transitions between different symmetry enriched topological (SET) phases.

Short bio

since 2022 Full Professor (W3), Physics Department, Technical University Munich
2017 – 2022 Associate Professor (W3), Physics Department, Technical University Munich
2011 – 2016 Research Group Leader (W2), Max Planck Institute for the Physics of Complex Systems, Dresden
2010 Visiting Scholar, Academia Sinica, Taipei
2008 – 2010 Postdoc, Group of Prof. J. E. Moore at the University of California, Berkeley
2006 – 2007 Postdoc, Group of Prof. P. Fulde at the Max Planck Institute for the Physics of Complex Systems, Dresden
2004 – 2006 Dr. rer. nat., Max Planck Institute for the Physics of Complex Systems, Dresden / Technical University Ilmenau
1998 – 2004 Diploma in Physics, Technical University Braunschweig / Royal Institute of Technology /Stockholms Universitet

Please join our online colloquium series via Zoom at:
Meeting ID: 641 5865 4884, Passcode: 823197