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Scientists Meet Scientists – Wednesday Coffee Talk by Prof. Dr. Michael Knap on "What is the Perfect Quantum Theory?"

30.10.2019


Professor Ernst Rank and the TUM-IAS team invite the scientists of TUM and their guests for coffee each Wednesday. Just come over to the TUM-IAS after lunch between 1:00–2:00 pm and have a coffee with us, meet other scientists and listen from time to time to a short talk (10-15 mins) on a recent major TUM publication or issue – aimed specifically at a non-expert audience.

On October 30, Prof. Dr. Michael Knap (TUM Department of Collective Quantum Dynamics) will talk about “What is the Perfect Quantum Theory?” Several phenomena in condensed matter physics, which studies solids and liquids, remain shrouded in mystery. For example, so far it remains elusive why the electrical resistance of high-temperature superconductors drops to zero at temperatures of about -200 degrees Celsius. Understanding such extraordinary states of matter is challenging: quantum simulators based on ultracold Lithium atoms have been developed to study the physics of high-temperature superconductors. They take snapshots of the quantum system, which exists simultaneously in different configurations – physicists speak of a superposition. Each snapshot of the quantum system gives one specific configuration according to its quantum mechanical probability. In order to understand such quantum systems, various theoretical models have been developed. But how well do they reflect reality?

Relevant Publication

Classifying snapshots of the doped Hubbard model with machine learning. Annabelle Bohrdt, Christie S. Chiu, Geoffrey Ji, Muqing Xu, Daniel Greif, Markus Greiner, Eugene Demler, Fabian Grusdt und Michael Knap - Nature Physics, July 1, 2019. DOI: 10.1038/s41567-019-0565.

The Wednesday Coffee Talks at the TUM-IAS

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