Hamiltonian Reduction and Classical Extended Superconformal Algebras

Details Hamiltonian Reduction and Classical Extended Superconformal Algebras Hamiltonian Reduction and Classical Extended Superconformal Algebras

1992-02-18

arxiv.org/abs/hep-th/9202058v1

Phys.Lett. B283 (1992) 223-230

Physics

High Energy Physics

High Energy Physics - Theory

13 pages

Scientific paper

10.1016/0370-2693(92)90012-S

We present a systematic construction of classical extended superconformal algebras from the hamiltonian reduction of a class of affine Lie superalgebras, which include an even subalgebra $sl(2)$. In particular, we obtain the doubly extended $N=4$ superconformal algebra $\tilde{A}_{\gamma}$ from the hamiltonian reduction of the exceptional Lie superalgebra $D(2|1;\gamma/(1-\gamma))$. We also find the Miura transformation for these algebras and give the free field representation. A $W$-algebraic generalization is discussed.

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