Emergent de Sitter epoch of the loop quantum cosmos: A detailed analysis

Assanioussi M, Dapor A, Liegener K, Pawlowski T (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Physical Review D American Physical Society

Book Volume: 100

Journal Issue: 8

DOI: 10.1103/PhysRevD.100.084003

Abstract

We present a detailed analysis of a quantum model for loop quantum cosmology based on strict application of the Thiemann regularization algorithm for the Hamiltonian in loop quantum gravity, extending the results presented previously in our brief report. This construction leads to a qualitative modification of the bounce paradigm. Quantum gravity effects still lead to a quantum bounce connecting deterministically large classical universes. However, the evolution features a large epoch of de Sitter Universe, with emergent cosmological constant of Planckian order, smoothly transiting into a spatially flat expanding universe. Moreover, we present an effective Hamiltonian describing the quantum evolution to high accuracy and for which the dynamics can be solved analytically.

Authors with CRIS profile

Andrea Dapor Chair for Theoretical Physics III (Quantum Gravity) Klaus Liegener Chair for Theoretical Physics III (Quantum Gravity)

Involved external institutions

University of Wroclaw / Uniwersytet Wrocławski PL Poland (PL) Universität Hamburg (UHH) DE Germany (DE)

How to cite

APA:

Assanioussi, M., Dapor, A., Liegener, K., & Pawlowski, T. (2019). Emergent de Sitter epoch of the loop quantum cosmos: A detailed analysis. Physical Review D, 100(8). https://dx.doi.org/10.1103/PhysRevD.100.084003

MLA:

Assanioussi, Mehdi, et al. "Emergent de Sitter epoch of the loop quantum cosmos: A detailed analysis." Physical Review D 100.8 (2019).

BibTeX: Download