University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Wednesday, September 28th 2016
4:30 pm:
CM Journal Club in PAN 110
Speaker: Mengxing Ye
Subject: Kosterlitz-Thouless transition

Berezinskii-Kosterlitz-Thouless transition describes the phase transition from the quasi long range ordered phase to disordered phase of certain 2d classical systems. The physics picture of the BKT transition as a transition the bounded vortex-antivortex pair becomes unpaired will be presented first. I will show how the original theory can be mapped to interacting vortices (=2d coulomb gas) through a mathematically rigorous duality transformation. Through the RG analysis, we will understand the nature of the phase transition in terms of the interacting vortices.

The weekly calendar is also available via subscription to the physics-announce mailing list, and by RSS feed.