148 citations · 350 across the 5 of their papers we have counts for
6 papers · 1 filter
Quantum field theory on a cosmological, quantum space-time
Abhay Ashtekar, Wojciech Kaminski, Jerzy Lewandowski
In loop quantum cosmology, Friedmann-LeMaitre-Robertson-Walker (FLRW) space-times arise as well-defined approximations to specific \emph{quantum} geometries. We initiate the develo…
Physical time and other conceptual issues of QG on the example of LQC
Wojciech Kaminski, Jerzy Lewandowski, Tomasz Pawlowski
Several conceptual aspects of quantum gravity are studied on the example of the homogeneous isotropic LQC model. In particular: The proper time of the co-moving observers is…
The status of Quantum Geometry in the dynamical sector of Loop Quantum Cosmology
Wojciech Kaminski, Jerzy Lewandowski, Lukasz Szulc
This letter is motivated by the recent papers by Dittrich and Thiemann and, respectively, by Rovelli discussing the status of Quantum Geometry in the dynamical sector of Loop Quant…
Closed FRW model in Loop Quantum Cosmology
Lukasz Szulc, Wojciech Kaminski, Jerzy Lewandowski
The basic idea of the LQC applies to every spatially homogeneous cosmological model, however only the spatially flat (so called ) case has been understood in detail in the lit…
Background independent quantizations: the scalar field II
W. Kaminski, J. Lewandowski, A. Okolow
We are concerned with the issue of quantization of a scalar field in a diffeomorphism invariant manner. We apply the method used in Loop Quantum Gravity. It relies on the specific…
Background independent quantizations: the scalar field I
Wojciech Kaminski, Jerzy Lewandowski, Marcin Bobienski
We are concerned with the issue of quantization of a scalar field in a diffeomorphism invariant manner. We apply the method used in Loop Quantum Gravity. It relies on the specific…