Recent content by buddychimp

I think I get it. I forgot that we here consider (orientation preserving) conformal transformations with respect to a Minkowsky metric, which leads to the equations \partial_\tau \tau' = \partial_\sigma \sigma' and \partial_\sigma \tau' = \partial_\tau \sigma' for a metric h=diag(1,-1)...

Thanks for the answers, this is more clear. But... I run into problem checking conformal invariance. I consider the Polyakov action with gauge fixing h=\text{diag}(1,-1). We obtain (up to a constant factor) S_P=\int d\tau d\sigma \left( \frac{\partial X^\mu}{\partial \tau} \frac{\partial...

Hi! I have little questions about symmetries. I begin in the field, so... First about conformal symmetry. As I studied, in 2-d, a transformation (\tau, \sigma) \to (\tau', \sigma') changing the metric by a multiplicative factor implies that the transformation (\tau, \sigma) \to (\tau'...

Hi! I have little questions about symmetries. I begin in the field, so... First about conformal symmetry. As I studied, in 2-d, a transformation (\tau, \sigma) \to (\tau', \sigma') changing the metric by a multiplicative factor implies that the transformation (\tau, \sigma) \to (\tau'...