Tunneling of fractionally charged, quasi-particle through an insulator.

Sourin Das

Weizmann Institute of Science


We consider tunneling of fractionally charged quasi-particles (Q.P.) through a large barrier in a Fractional Quantum Hall droplet in a multiply connected geometry. Global constraint for Q.P. tunneling does not arise in the, context of multiply connected geometry., We employ RG technique to, analyze the problem in the, vicinity of weak tunneling, regime.