Liouville Brownian motion is the diffusion obtained by changing the clock of planar Brownian motion so that its reference measure
is the areameasure of Liouville
quantum gravity. In conformal coordinates, its energy form under one standard
clock convention is
with the associated operator acting in rather than . Changing this energy normalization changes the diffusion
clock.
Garban, C.; Rhodes, R.; and Vargas, V. "On the Heat Kernel and the Dirichlet Form of Liouville Brownian Motion." Electron. J.
Probab.19, Article 96, 1-25, 2014. https://doi.org/10.1214/EJP.v19-2950.