Emergent de Sitter Epoch of the Quantum Cosmos from Loop Quantum Cosmology.
Phys Rev Lett
; 121(8): 081303, 2018 Aug 24.
Article
in En
| MEDLINE
| ID: mdl-30192588
ABSTRACT
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 Hamiltonian in loop quantum gravity, 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 a de Sitter universe, with an emergent cosmological constant of Planckian order, smoothly transiting into a spatially flat expanding universe.
Full text:
1
Database:
MEDLINE
Type of study:
Qualitative_research
Language:
En
Year:
2018
Type:
Article