Extended N = 2 superconformal structure of gravity and W-gravity coupled to matter
| Autor: | M. Bershadsky, Wolfgang Lerche, Nicholas P. Warner, Dennis Nemeschansky |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics Integrable system FOS: Physical sciences Superstring theory High Energy Physics::Theory symbols.namesake High Energy Physics - Theory (hep-th) symbols Hamiltonian (quantum mechanics) Quantum General Theoretical Physics Mathematical physics |
| Zdroj: | Nuclear Physics B. 401:304-347 |
| ISSN: | 0550-3213 |
| DOI: | 10.1016/0550-3213(93)90306-a |
| Popis: | We show that almost all string theories, including the bosonic string, the superstring and $W$-string theories, possess a twisted N=2 superconformal symmetry. This enables us to establish a connection between topological gravity and the field theoretical description of matter coupled to gravity. We also show how the \brs operators of the $W_n$-string can be obtained by hamiltonian reduction of $SL(n|n-1)$. The tachyonic and ground ring states of $W$-strings are described in the light of the N=2 superconformal structure, and the ground ring generators for the non-critical $W_3$-string are explicitly constructed. The relationship to $G/G$ models and quantum integrable systems is also briefly described. 48 pages |
| Databáze: | OpenAIRE |
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