University of Cambridge > Talks.cam > Theory of Condensed Matter > Topology and scale invariance in atomic Flatland

Topology and scale invariance in atomic Flatland

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Katarzyna Macieszczak.

In a 2D world, most transitions towards ordered states of matter like crystals or magnets would not occur because of the increased role of fluctuations. However, non-conventional topological transitions can still occur, as understood by Kosterlitz and Thouless. In this talk I will present some important features of Flatland physics explored with cold atomic gases, such as the existence of a superfluid phase with quasi long-range order. I will also investigate the scale invariance of these fluids and discuss the existence of “breathers”, i.e., specific initial shapes leading to a periodic evolution of the gas when it is suddenly immersed in a harmonic potential. Finally using the notion of a synthetic dimension, I will connect the physics of these atomic systems with other prominent topological properties of matter, such as quantum-Hall type phenomenon.

This talk is part of the Theory of Condensed Matter series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2020 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity