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Conductivity of paired composite fermions
Kerwin C Foster1, N E Bonesteel, Steven H Simon
1Department of Physics, Dillard University, New Orleans, Louisiana 70122, USA.
Physical Review Letters
|August 9, 2003
Abstract:
We develop a phenomenological description of the nu=5/2 quantum Hall state in which the Halperin-Lee-Read theory of the half-filled Landau level is combined with a p-wave pairing interaction between composite fermions (CFs). The electromagnetic response functions for the resulting mean-field superconducting state of the CFs are calculated and used in an RPA calculation of the q and omega dependent longitudinal conductivity of the physical electrons, a quantity which can be measured experimentally.