DMYTRO PESIN

DMYTRO PESIN portrait
  • Assistant Professor, Physics And Astronomy

Research

Research Summary

Effects of electron-electron interaction, disorder, and spin-orbit interaction in condensed matter systems.

Research Statement

 

I am a condensed matter theorist, interested in the quantum physics of many-particle systems. The main objective of this area of research is to investigate various types of collective, or correlated, behaviors of many-particle systems containing macroscopically (or mesoscopically) large number of particles. The celebrated examples of the systems studied under this general title are macroscopic quantum phenomena, such as superconductivity, superfluidity, and magnetism, or various types Quantum Hall Effects and other correlation-driven phases in low-dimensional systems. More recently, essentially  over the past few years, this experiment-driven area has received powerful boosts from the discoveries of graphene, topological insulators, and Iron-based superconductors. Each topic from this not-even-close-to-exhaustive list led to a surge of publications in leading scientific journals. More importantly, they have advanced the fundamental science and technology.
 
My own expertise lies in the areas of mesoscopic physics and strongly correlated systems. My main research subjects are mesoscopics (quantum transport and physics of interacting disordered low-dimensional systems), spintronics (electric control of spin-orbit coupled ferromagnets), topological insulators (the interplay of strong correlations physics and band topology, disorder effects), and cold atomic systems (transient phenomena in ultracold gases).
 
In my work I look for a good balance between sophisticated analytic techniques and physical insight. It ranges from very technically challenging projects on the non-linear sigma model in disordered interacting system, and Larkin-Ovchinnikov description of quasiclassical transport in superconductors, to projects on transport in coherent quantum Hall bilayers and ferromagnetic resonance in nanoparticle arrays and artificial spin ices, aimed to understand the peculiarities of recent experiments. In fact, a great deal of my recent work is inspired by very fruitful collaborations with experimental groups led by Jim Eisenstein, Andrew Kent, Klaus von Klitzing, and Emanuel Tutuc. Needless to say, collaboration with my theorist colleagues  has contributed immensely to my progress.