  Confinement of small-gapped fractional quantum Hall states facilitates
quasiparticle manipulation and is an important step towards quasiparticle
interference measurements. Demonstrated here is conduction through top gate
defined, narrow channels in high density, ultra-high mobility heterostructures.
Transport evidence for the persistence of a correlated state at filling
fraction 5/3 is shown in channels of 2micron length but gated to near 0.3micron
in width. The methods employed to achieve this confinement hold promise for
interference devices proposed for studying potential non-Abelian statistics at
filling fraction 5/2.
