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Scale invariance, a hidden symmetry explored with quantum gases

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Scale invariance, a concept initially introduced in high-energy physics, has gained numerous applications in the physics of quantum fluids. It can be used to describe strongly interacting Fermi gases, two-dimensional Bose gases, as well as few-body systems that exhibit the “Efimov effect.” This presentation will demonstrate how scale and conformal invariance emerge in cold atomic gases. Examples will be provided from a range of fields, including thermodynamics, soliton physics, and specific structures with periodic time evolution, known as “breathers”.

This talk is part of the Cavendish Quantum Colloquium series.

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