Bootstat 2021: Conformal bootstrap and statistical models

Critical behavior near structural phase transitions

19 mai 2021, 10:00

1h

Institut Pascal, Orsay, France & online

Lecture / lecture series 3. Structural phase transitions and other unitary problems

Orateur

Amnon Aharony (Tel Aviv University)

Description

SrTiO${}_3$ and LaAlO${}_3$ undergo structural phase transitions from a cubic trructure to lower symmetry structures. These transitions can be affected by uniaxial stress. Following original work by Alex Mueller, I have worked on these transitions since 1973. Many details depend on whether the 3-component cubic problem is dominated by the isotropic or by the cubic fixed point. Most of the past literature assumed that the former dominates. Following discussions with Slava Rychkov, I realized that it is now believed that the latter wins. This talk will discuss the consequences of this change, and the experimental possibilities to test it.

Documents de présentation

Aharony_BootStat_Slides.pdf