Unpaired composite fermion, topological exciton, and zero mode

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, adi...

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Bibliographic Details
Published in:Physical review letters 2011-09, Vol.107 (13), p.136802-136802, Article 136802
Main Authors: Sreejith, G J, Wójs, A, Jain, J K
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.136802