Testing the pfaffian model for even denominator fractional quantum effect
by
Jainendra Jain(Penstate)
→
Europe/Stockholm
FA31
FA31
Description
Abstract: There has been considerable interest in the fractional quantum Hall
effect at 5/2, the only even denominator fraction to be observed in a single
layer system, because of the possibility that it represents a paired state of
composite fermions, and that its excitations obey nonabelian statistics. I
will report on our work during the last 2-3 years testing the validity of this
model against exact results known for finite systems. I will also present a
method for understanding the 5/2 FQHE without invoking the Pfaffian model, and
the result of our theoretical search for the Pfaffian in graphene.
