Gauge theory of composite fermions

We explain the success of Jainʹs composite fermion theory for quantum Hall systems at the filling factor ν=p/(2pq±1) by applying the gauge theory of particle–flux separation. At temperatures View the MathML source for View the MathML source, the charge and Chern–Simons flux degrees of freedom of electrons separate. We call quasiparticles carrying each quantum number chargeons and fluxons, respectively. Bose condensation of fluxons below View the MathML source justifies the (partial) cancellation of the external magnetic field, as assumed in the composite-fermion theory. The resistivity ρxx acquires an extra reduction factor below TPFS from the expected T-linear behavior.