Distance Measurement and Wave Dispersion in a Liouville-String Approach to Quantum Gravity

摘要: Within a Liouville approach to noncritical string theory, we discuss space–time foam effects on the propagation of low-energy particles. We find an induced frequency-dependent dispersion in wave packet, and observe that this would affect outcome measurements involving particles as probes. In particular, maximum possible order magnitude give rise error measurement distance comparable independently obtained some recent heuristic quantum-gravity analyses. also briefly compare these estimates with precision astrophysical measurements.