Quantum simulation of strongly correlated fermions: A theory perspective

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• Fabian Grusdt, Ludwig-Maximilians-Universität München
• Thursday 24 September 2020, 13:00-14:00
• https://bham-ac-uk.zoom.us/j/9115054257?pwd=UWJqaGZpZitLUVZHQkJGby9xU2dXQT09.

If you have a question about this talk, please contact Dr Hannah Price.

Quantum simulations with ultracold atoms provide an unprecedented microscopic perspective on strongly correlated quantum matter. In the Fermi-Hubbard model, believed to underly high-Tc superconductivity, this allows to revisit a decades-old idea that strongly interacting electrons may fractionalize into partons — loosely speaking, the analogues of quarks in high-energy physics — called spinons and chargons. In this talk I will discuss current experimental results supporting this idea; I will review our refined theoretical understanding as of today, and propose new ways to directly visualize the emergent constituents. In the second part of the talk, I will approach the problem from a different angle and discuss Z2 lattice gauge theories coupled to dynamical matter fields. On one hand, these systems can describe some of the exotic physics expected in the Fermi-Hubbard model at low doping. On the other hand, recent progress in the quantum simulation of lattice gauge theories allows to study them in their own right.

This talk is part of the Theoretical Physics Seminars series.

This talk is included in these lists:

• Bham Talks
• Theoretical Physics Seminars
• What's on in Physics?
• https://bham-ac-uk.zoom.us/j/9115054257? pwd=UWJqaGZpZitLUVZHQkJGby9xU2dXQT09
• https://bham-ac-uk.zoom.us/j/9115054257?pwd=UWJqaGZpZitLUVZHQkJGby9xU2dXQT09

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