(p, q)-strings and New Spacetime Superalgebras

We obtain the pullback to the F-string worldsheet of the R⊗R gauge potential bR by considering a map which transforms the F-string superalgebra to the D-string superalgebra. In addition, it is shown that bR on the worldsheet is obtained by starting with a superalgebra, which is obtained by interchanging new fermionic generators, Zα and Z̃α, in the F-string superalgebra. Interchanging new fermionic generators, thus, corresponds to exchanging the NS⊗NS for the R⊗R gauge potential. Using the obtained expression for bR on the worldsheet, we examine the (p, q)-string action and show the κ-invariance of the action. The corresponding (p, q)-string superalgebra is obtained. e-mail: [email protected] or [email protected]