Random Field Ising Model and Parisi-Sourlas Supersymmetry - Lecture 3

Explore a comprehensive lecture on the Random Field Ising Model and Parisi-Sourlas Supersymmetry presented by Slava Rychkov at the Institut des Hautes Etudes Scientifiques (IHES). Delve into recent theoretical developments aimed at explaining the loss of Parisi-Sourlas supersymmetry and dimensional reduction properties in certain dimensions. Examine numerical evidence, phase diagrams, and well-established facts about the Random Field Ising Model. Investigate the implications of Parisi-Sourlas supersymmetry, generalities about RG fixed point disappearance, and the potential role of dangerously irrelevant operators. Study replica field theory, the Cardy field transform, and its derivation of Parisi-Sourlas supersymmetry. Analyze replica symmetric interactions, leader and follower interactions, and the classification of leaders. Explore anomalous dimension computations and evidence for supersymmetric fixed point instability. Gain insights into future research directions and open problems in this field. The lecture covers extensive literature and recent publications, providing a thorough understanding of the subject matter.