Topological Landau theory
Event Start:
2026-02-05T10:00:00
Event End:
2026-02-05T11:00:00
Event Information:
I will discuss a notion of topology “hidden†in Landau’s theory of phase transitions. When the order parameter comprises several components in the same irreducible representation of symmetry, it can possess a nontrivial topology and acquire a Berry phase under the variation of thermodynamic parameters. To illustrate this idea, I will focus on the superconducting phase transition of an electronic system with tetragonal symmetry and a two-component order parameter.
Event Location:
BRIM 311
Speaker:
Joseph Maciejko, University of Alberta
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Event Start:
2026-02-05T10:00:00
Event End:
2026-02-05T11:00:00
Topological Landau theory
Event Information:
I will discuss a notion of topology “hidden†in Landau’s theory of phase transitions. When the order parameter comprises several components in the same irreducible representation of symmetry, it can possess a nontrivial topology and acquire a Berry phase under the variation of thermodynamic parameters. To illustrate this idea, I will focus on the superconducting phase transition of an electronic system with tetragonal symmetry and a two-component order parameter.
Event Location:
BRIM 311