O ct 2 00 8 A Causal Alternative for c = 0 Strings

  title={O ct 2 00 8 A Causal Alternative for c = 0 Strings},
  author={Jan Coumbe Ambj\orn and Renate Loll and Yoshiyuki Watabiki and Willem Westra and Stefan Zohren}
We review a recently discovered continuum limit for the one-matrix model which describes " causal " two-dimensional quantum gravity. The behaviour of the quantum geometry in this limit is different from the quantum geometry of Euclidean two-dimensional quantum gravity defined by taking the " standard " continuum limit of the one-matrix model. Geodesic distance and time scale with canonical dimensions in this new limit, contrary to the situation in Euclidean two-dimensional quantum gravity… CONTINUE READING