scholarly journals Observables in the General Boundary Formulation

2012 ◽  
pp. 137-156 ◽  
Author(s):  
Robert Oeckl
Keyword(s):  
General Boundary ◽  
General Boundary Formulation

COMPARING LQG WITH THE LINEARIZED THEORY

2008 ◽  
Vol 23 (08) ◽  
pp. 1200-1208 ◽  
Author(s):  
ELENA MAGLIARO ◽  
CLAUDIO PERINI
Keyword(s):  
Quantum Gravity ◽  
Field Theories ◽  
General Boundary ◽  
Graviton Propagator ◽  
Linearized Theory ◽  
Perturbative Quantum ◽  
The One ◽  
General Boundary Formulation

We illustrate the conceptual scenario of the general boundary formulation for field theories and present a brief description of the calculus of graviton propagator in the context of LQG. Then we analyze the possibility of comparing this result with the graviton propagator in perturbative quantum gravity. For this purpose we demonstrate the compatibility of harmonic and radial gauge; it allows to simultaneously impose both gauges and to obtain an expression for the propagator comparable with the one provided by LQG.

The general boundary formulation of quantum theory and its relevance for the problem of quantum gravity

2011 ◽  
Author(s):  
Daniele Colosi ◽  
Luis Arturo Ureña-López ◽  
Hugo Aurelio Morales-Técotl ◽  
Román Linares-Romero ◽  
Elí Santos-Rodríguez ◽  
...  
Keyword(s):  
Quantum Theory ◽  
Quantum Gravity ◽  
General Boundary ◽  
General Boundary Formulation
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