Gaffnian holonomy through the coherent state method

Abstract

We analyze the effect of exchanging quasiholes described by Gaffnian quantum Hall trial state wave functions. This exchange is carried out via adiabatic transport using the recently developed coherent state Ansatz. We argue that our Ansatz is justified if the Gaffnian parent Hamiltonian has a charge gap, even though it is gapless to neutral excitations, and may therefore properly describe the adiabatic transport of Gaffnian quasiholes. For nonunitary states such as the Gaffnian, the result of adiabatic transport cannot agree with the monodromies of the conformal block wave functions, and may or may not lead to well-defined anyon statistics. Using the coherent state Ansatz, we find two unitary solutions for the statistics, one of which agrees with the statistics of the non-Abelian spin-singlet state by Ardonne and Schoutens.

11 pages, 4 figures

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• Local two-body parent Hamiltonians for the entire Jain sequence
• The Jain-2/5 parent Hamiltonian: structure of zero modes, dominance patterns, and zero mode generators
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• Composite fermions in Fock space: Operator algebra, recursion relations, and order parameters
• Heat equation approach to geometric changes of the torus Laughlin-state