Finite <i>W</i>-superalgebras and quadratic spacetime supersymmetries
Finite <i>W</i>-superalgebras and quadratic spacetime supersymmetries
We consider Lie superalgebras under constraints of Hamiltonian reduction, yielding finite W-superalgebras which provide candidates for quadratic spacetime superalgebras. These have an undeformed bosonic symmetry algebra (even generators) graded by a fermionic sector (supersymmetry generators) with anticommutator brackets which are quadratic in the even generators. We analyze the reduction of …