Physics

Dr. Sreejith G J
IISER Pune

Abstract:

Fractional quantum Hall effect occurs in clean 2D electronic systems, in high magnetic fields, and low temperatures. The relative obscurity of the context belies its true significance in modern condensed matter physics. At the core, the effect occurs due to formation of highly correlated quantum electronic liquids. Numerical studies built on a theory of emergent particles called composite fermions have been central to our understanding
of FQH physics. Analysis of these states reveals rich universal physics and mathematical structures that have intrigued theorists and experimentalists alike. In this talk, I will introduce the relevant aspects of the composite fermion theory, and some current themes in experiments, and present some of the key numerical techniques and tools that reveal universal aspects - such as quasiparticle properties, entanglement spectra, shift, edge structures,root partitions etc - embodied within the correlated states.