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Published on: June 28, 2018
Unpaired composite fermion, topological exciton, and zero mode
G J Sreejith1, A Wójs, J K Jain
1Department of Physics, Davey Lab, Pennsylvania State University, University Park, 16802, USA.
Abstract:
The paired state of composite fermions is expected to support two kinds of excitations: vortices and unpaired composite fermions. We construct an explicit microscopic description of the unpaired composite fermions, which we demonstrate to be accurate for a 3-body model interaction and, possibly, adiabatically connected to the Coulomb solution. This understanding reveals that an unpaired composite fermion carries with it a charge-neutral "topological" exciton, which, in turn, helps provide microscopic insight into the origin of zero modes, fusion rules, and energetics.
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