Some Physical Aspects of Liouville String Dynamics
  We discuss some physical aspects of our Liouville approach to non-critical strings, including the emergence of a microscopic arrow of time, effective field theories as classical ``pointer'' states in theory space, $CPT$ violation and the possible apparent non-conservation of angular momentum. We also review the application of a phenomenological parametrization of this formalism to the neutral kaon system. 
J. Ellis, N. Mavromatos, and D. Nanopoulos