Colloquium Series

Time: Thursday 16 April 2015 – 1:00pm
Place: New Horizons (Building 82), Theatre G29 (map)

Strongly interacting quantum particles under confinement: An essentially exact approach

Dr Jesper Levinsen, Monash University

A major challenge in modern physics is to accurately describe strongly interacting quantum many-body systems. Fundamental insights have been obtained from the paradigmatic one-dimensional systems, as these are often exactly solvable. Likewise, the harmonic oscillator plays a central role in quantum mechanics. However, when one combines these two fundamental models and considers interacting fermions in a one-dimensional harmonic potential, there is no known solution in general.

In this talk, I will first describe a recent breakthrough experiment realising the two-component Fermi gas with tunable interactions in this geometry. I will then discuss how the system becomes near-exactly solvable near the limit of infinite repulsion. As well as providing an important benchmark for strongly correlated physics, these results are relevant for emerging quantum technologies, where a precise knowledge of one-dimensional quantum states is paramount.

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