Extensive theoretical tests that confirm the validity of the composite fermion description in the v=1/3 region were presented. The tests affirm that the composite fermion theory correctly describes the qualitative reorganization of the low energy Hilbert space of the strongly correlated electrons. It was found possible that the 4/11 fractional quantum Hall effect (FQHE) state is a new type of incompressible state of composite fermions.
- A. Composite fermion
- Fractional quantum Hall effect