Signature Characters for the Virasoro Algebra
classification
✦ hep-th
keywords
algebracharacterssignaturevirasorohighestrepresentationsweightanalysis
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The number of ghost states at each energy level in a non-unitary conformal field theory is encoded in the signature characters of the relevant Virasoro algebra highest weight representations. We give expressions for these signature characters. These results complete Friedan-Qiu-Shenker's analysis of the Virasoro algebra's highest weight representations.
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