On time

2016, November 21
A. S. Cattaneo and M. Schiavina
Lett. Math. Phys. 107, 375–408 (2017)
  s11005-016-0907-x
This note describes the restoration of time in one-dimensional 
parameterization-invariant (hence timeless) models, namely the 
classically-equivalent Jacobi action and gravity coupled to matter. 
It also serves as a timely introduction by examples to the classical and quantum 
BV-BFV formalism as well as to the AKSZ method.