335 citations · 748 across the 8 of their papers we have counts for
5 papers · 1 filter
Singularity Resolution in Loop Quantum Cosmology: A Brief Overview
Abhay Ashtekar
A brief summary of the singularity resolution in loop quantum cosmology of homogeneous isotropic models is presented. The article is addressed to relativists who do not specialize…
Loop Quantum Cosmology: An Overview
Abhay Ashtekar
A brief overview of loop quantum cosmology of homogeneous isotropic models is presented with emphasis on the origin of and subtleties associated with the resolution of big bang and…
Quantum Space-times: Beyond the Continuum of Minkowski and Einstein
Abhay Ashtekar
In general relativity space-time ends at singularities. The big bang is considered as the Beginning and the big crunch, the End. However these conclusions are arrived at by using g…
Action and Hamiltonians in higher dimensional general relativity: First order framework
Abhay Ashtekar, David Sloan
We consider -dimensional space-times which are asymptotically flat at spatial infinity and show that, in the first order framework, the action principle is well-defined \emph{…
Asymptotics and Hamiltonians in a First order formalism
Abhay Ashtekar, Jonathan Engle, David Sloan
We consider 4-dimensional space-times which are asymptotically flat at spatial infinity and show that, in the first order framework, action principle for general relativity is well…