Coherent transport through a quantum dot in a strong magnetic field

I discuss recent work on the phase of the transmission coefficient for tunneling through a quantum dot in the quantum Hall effect regime. The effects of electron—electron interaction on this phase is investigated with the use of finite-size bosonization techniques combined with perturbation theory resummation. New non-Fermi-liquid phenomena are predicted in the fractional quantum Hall regime that may be used to distinguish experimentally between Tomonaga—Luttinger and Fermi liquids. ( 1998 Elsevier Science B.V. All rights reserved.