Princeton University

School of Engineering & Applied Science

Exotic fractional quantum Hall states in the second Landau level

Speaker: 
Ethan Kleinbaum, Purdue University
Date/Time: 
Thursday, February 25, 2016 - 2:00pm

The study of the fractional quantum Hall states has enriched contemporary condensed matter physics with several key concepts such as the fractional charge, Laughlin correlation, composite fermion, and Abelian statistics. Theories based on Laughlin’s wavefunction and on composite fermion mapping provide a very accurate description of the fractional states in the lowest Landau level. In contrast, the understanding of the fractional states in the second Landau level remains elusive. In my talk I will describe several surprising properties of the fractional quantum Hall states which form in the second Landau level in high quality samples and ultra-low temperatures.