Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-11-25
J.Phys.A36:7649-7665,2003
Physics
High Energy Physics
High Energy Physics - Theory
LaTex file 20 pages; Title changed and modifications made
Scientific paper
10.1088/0305-4470/36/27/316
We study the conformal field theories corresponding to current superalgebras $osp(2|2)^{(1)}_k$ and $osp(2|2)^{(2)}_k$. We construct the free field realizations, screen currents and primary fields of these current superalgebras at general level $k$. All the results for $osp(2|2)^{(2)}_k$ are new, and the results for the primary fields of $osp(2|2)^{(1)}_k$ also seem to be new. Our results are expected to be useful in the supersymmetric approach to Gaussian disordered systems such as random bond Ising model and Dirac model.
Ding Xiang-Mao
Gould Mark D.
Mewton Courtney J.
Zhang Yao-Zhong
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