Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Cosmological effective Hamiltonian from full loop quantum gravity dynamics

- A. Dapor, K. Liegener
- Physics
- 29 June 2017

Abstract The concept of effective dynamics has proven successful in LQC, a loop-inspired quantization of cosmological spacetimes. We apply the same idea of its derivation in LQC to the full theory,… Expand

71 5- PDF

Emergent de Sitter Epoch of the Quantum Cosmos from Loop Quantum Cosmology.

- Mehdi Assanioussi, A. Dapor, K. Liegener, T. Pawłowski
- Physics, Medicine
- Physical review letters
- 2 January 2018

The quantum nature of the big bang is reexamined in the framework of loop quantum cosmology. The strict application of a regularization procedure to the Hamiltonian, originally developed for the… Expand

39 1- PDF

Rainbow metric from quantum gravity

- Mehdi Assanioussi, A. Dapor, J. Lewandowski
- Physics
- 18 December 2014

Abstract In this Letter, we describe a general mechanism for emergence of a rainbow metric from a quantum cosmological model. This idea is based on QFT on a quantum spacetime. Under general… Expand

27 1- PDF

QFT on quantum spacetime: a compatible classical framework

- A. Dapor, J. Lewandowski, Jacek Puchta
- Physics
- 13 February 2013

(Dated: May 21, 2013)We develop a systematic classical framework to accommodate canonical quantization of geomet-ric and matter perturbations on a quantum homogeneous isotropic ﬂat spacetime. The… Expand

21 1- PDF

Smooth Big Bounce from Affine Quantization

- H. Bergeron, A. Dapor, J. Gazeau, P. Małkiewicz
- Physics
- 3 May 2013

We examine the possibility of dealing with gravitational singularities on a quantum level through the use of coherent state or wavelet quantization in- stead of canonical quantization. We consider… Expand

34- PDF

Cosmological Coherent State Expectation Values in LQG I. Isotropic Kinematics

- A. Dapor, K. Liegener
- Physics
- 11 October 2017

This is the first paper of a series dedicated to LQG coherent states and cosmology. The concept is based on the effective dynamics program of Loop Quantum Cosmology, where the classical dynamics… Expand

22

Cosmological coherent state expectation values in loop quantum gravity I. Isotropic kinematics

- A. Dapor, K. Liegener
- Physics
- 11 October 2017

This is the first paper of a series dedicated to LQG coherent states and cosmology. The concept is based on the effective dynamics program of Loop Quantum Cosmology, where the classical dynamics… Expand

22- PDF

Smooth Bounce in Affine Quantization of Bianchi I

- H. Bergeron, A. Dapor, J. Gazeau, P. Małkiewicz
- Physics
- 30 January 2015

We present the affine coherent state quantization of the Bianchi I model. As in our previous paper on quantum theory of Friedmann models, we employ a variable associated with a perfect fluid to play… Expand

10- PDF

Loop Quantum Gravity on lattice: toward effective dynamics

- A. Dapor
- Physics
- 13 April 2019

D ec 2 01 9 Challenges in recovering a consistent cosmology from the effective dynamics of loop quantum gravity

- A. Dapor, K. Liegener, Tomasz Paw lowski
- 2019

We reexamine a set of existing procedures aimed at recovering the effective description of the dynamics of LQG in the context of cosmological solutions. In particular, the studies of those methods,… Expand