Correlation Functions of Dense Polymers and c=-2 Conformal Field Theory

Details Correlation Functions of Dense Polymers and c=-2 Conformal Field Theory Correlation Functions of Dense Polymers and c=-2 Conformal Field Theory

1998-01-19

arxiv.org/abs/cond-mat/9801183v2

J.Phys.A32:1691-1699,1999

Physics

Condensed Matter

Statistical Mechanics

5 pages, REVTeX, remark is added

Scientific paper

10.1088/0305-4470/32/9/015

The model of dense lattice polymers is studied as an example of non-unitary Conformal Field Theory (CFT) with $c=-2$. ``Antisymmetric'' correlation functions of the model are proved to be given by the generalized Kirchhoff theorem. Continuous limit of the model is described by the free complex Grassmann field with null vacuum vector. The fundamental property of the Grassmann field and its twist field (both having non-positive conformal weights) is that they themselves suppress zero mode so that their correlation functions become non-trivial. The correlation functions of the fields with positive conformal weights are non-zero only in the presence of the Dirichlet operator that suppresses zero mode and imposes proper boundary conditions.

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