Recent content by cuerdero

Someone can helpme finding the number of degree of freedom for supergravity n=8?

thanks a lot..now I can see it better

Thanks to everyone, it was really helpful...but my next question is: what about the Virasoro operators and the mass of the string?

Please, I can´t get the answer.. Thank you

trying to get the open string hamiltonian I use H=\int\,d\sigma(\dot{X}.P_{\tau}-L)=\frac{T}{2}\int(\dot{X}^{2}+X'^{2})d\sigma as in Witten´s book, but we are integrating the Virasoro constraint equal to zero. So, Is not the Hamiltonian zero? Please, clarifyme this equation.