The role of imaginary vector potential in composite fermion pairing theory
arXiv:cond-mat/9903295
Abstract
We show that the imaginary vector potential causes a pair-breaking effect in the composite fermion theory, and discuss its irrelevance in the pairing state. The Hamiltonian for pairing states of composite fermions is proposed. The advantage of non-unitary transformations and the meaning of the non-Hermitian term are discussed.
3 pages