КОЛОКВИЈУМ: Проф. др Владимир Добросављевић

У оквиру традиционалног колоквијума Института за физику у Београду, у четвртак, 4. јула 2019. у 12 часова у сали „Звонко Марић“, предавање под насловом:

Landau Theory of Disorder-Driven Metal-Insulator Transitions

ће одржати проф. др Владимир Добросављевић (Florida State University).

САЖЕТАК:

Disorder-driven metal-insulator transitions have long defied proper understanding, despite representing one of the basic phenomena in solid state physics. In this talk we will provide a broad overview of the available theoretical ideas and methods, as well as the experimental results providing guidance. We will then present a new theoretical approach that makes it possible to formulate Landau-like order parameter theory at the saddle-point level, capturing most experimental puzzles. It also allows an investigation of systematic fluctuation corrections, suggesting a finite upper critical dimension, and a formulation of an appropriate Landau-Ginzburg description of spatial correlations currently studied by scanning probes.