Abstract
An -dimensional representation of the periodic Temperley–Lieb algebra TLL(x) is presented. It is also a representation of the cyclic group ZN. We choose x = 1 and define a Hamiltonian as a sum of the generators of the algebra acting in this representation. This Hamiltonian gives the time evolution operator of a stochastic process. In the finite-size scaling limit, the spectrum of the Hamiltonian contains representations of the Virasoro algebra with complex highest weights. The N = 3 case is discussed in detail. We discuss briefly the consequences of the existence of complex Virasoro representations for the physical properties of the systems.
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