CMSA Quantum Matter in Mathematics and Physics: Spin of the fractional quantum Hall magnetoroton through polarized Raman scattering


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March 31, 2021 10:30 am - 12:00 pm
via Zoom Video Conferencing

Dam Thanh Son - U Chicago

The magnetoroton is the neutral excitation of a gapped fractional quantum Hall state. We argue that at zero momentum the magnetoroton has spin ±2, and show how the spin of the magnetoroton can be determined by polarized Raman scattering. We suggest that polarized Raman scattering may help to determine the nature of the ν=5/2 state. Ref: D.X. Nguyen and D.T. Son, arXiv:2101.02213.