Possibility of p-wave pairing of composite fermions at $\nu =1/2$

Abstract

We find that for the pure Coulomb repulsion the composite Fermi sea at $\nu =1/2$ is on the verge of an instability to triplet pairing of composite fermions. It is argued that a transition into the paired state, described by a Pfaffian wave function, may be induced if the short-range part of the interaction is softened by increasing the thickness of the two-dimensional electron system.

14 pages, 3 eps figures included

References in corpus (1)

• Transition from quantum Hall to compressible states in the second Landau level: new light on the $\nu$=5/2 enigma

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