Fermionic strings with Fermionic mass points are introduced. Now there are both spacelike oscillations as well as spin oscillations. The notion of a world sheet, traced out by a string over time, is introduced. Path integrals are defined with respect to the world sheet and lead to the Laplace equation.
- The ground state of Fermionic strings
- The action for a string
- Path integral review
- Path integrals in string theory lead to the Laplace equation