String worldsheet
= String worldsheet
{wiki=Worldsheet}
A string worldsheet $\Sigma$ is the two-dimensional surface swept out by a string in spacetime. Local coordinates are commonly denoted $\sigma^\alpha=(\tau,\sigma)$.
= String worldsheet
{wiki=Worldsheet}
A string worldsheet $\Sigma$ is the two-dimensional surface swept out by a string in spacetime. Local coordinates are commonly denoted $\sigma^\alpha=(\tau,\sigma)$.