Parafermionic quasi-particle basis and fermionic-type characters

Details Parafermionic quasi-particle basis and fermionic-type characters Parafermionic quasi-particle basis and fermionic-type characters

2001-08-09

arxiv.org/abs/hep-th/0108063v2

Nucl.Phys. B620 (2002) 351-379

Physics

High Energy Physics

High Energy Physics - Theory

minor modifications and proof in app. C completed; 34 pages (harvmac b)

Scientific paper

10.1016/S0550-3213(01)00548-X

A new basis of states for highest-weight modules in $\ZZ_k$ parafermionic conformal theories is displayed. It is formulated in terms of an effective exclusion principle constraining strings of $k$ fundamental parafermionic modes. The states of a module are then built by a simple filling process, with no singular-vector subtractions. That results in fermionic-sum representations of the characters, which are exactly the Lepowsky-Primc expressions. We also stress that the underlying combinatorics -- which is the one pertaining to the Andrews-Gordon identities -- has a remarkably natural parafermionic interpretation.

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