Generalized Clustering Conditions of Jack Polynomials at Negative Jack Parameter $\alpha$

Abstract

We present several conjectures on the behavior and clustering properties of Jack polynomials at \emph{negative} parameter $\alpha =-\frac{k+1}{r-1}$, of partitions that violate the $(k,r,N)$ admissibility rule of Feigin \emph{et. al.} [\onlinecite{feigin2002}]. We find that "highest weight" Jack polynomials of specific partitions represent the minimum degree polynomials in $N$ variables that vanish when $s$ distinct clusters of $k+1$ particles are formed, with $s$ and $k$ positive integers. Explicit counting formulas are conjectured. The generalized clustering conditions are useful in a forthcoming description of fractional quantum Hall quasiparticles.

12 pages

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