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We study the exact Bethe Ansatz solution of the p+ip Hamiltonian in a formwhereby quantum numbers of states refer to hole-pairs, rather thanparticle-pairs used in previous studies. We find an asymmetry between theseapproaches. For the attractive system states in the strong pairing regime takethe form of a quasi-condensate involving two distinct hole-pair creationoperators. An analogous feature is not observed in the particle-pair picture.

Exact solution of the p+ip Hamiltonian revisited: duality relations in the hole-pair picture