The Brown-Kuchar mechanism is applied in the case of General Relativity coupled with the Schutz' model for a perfect fluid. Using the canonical formalism and manipulating the set of modified constraints one is able to recover the definition of a time evolution operator, i.e. a physical Hamiltonian, expressed as a functional of gravitational variables and the entropy.
|Publication status||Published - 2011|
|Event||3rd Stueckelberg Workshop on Relativistic Field Theories - Pescara, Italy|
Duration: 1 Jan 2011 → …
|Conference||3rd Stueckelberg Workshop on Relativistic Field Theories|
|Period||1/1/11 → …|
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Nuclear and High Energy Physics
Cianfrani, F., Montani, G., & Zonetti, S. (2011). Fluid entropy as time-variable in canonical quantum gravity. Paper presented at 3rd Stueckelberg Workshop on Relativistic Field Theories, Pescara, Italy.