English

Effective Hamiltonian of the k=+1 FRW model from the K-Quantization method in LQC

General Relativity and Quantum Cosmology 2023-10-12 v1

Abstract

In the effective theory of loop quantum cosmology LQC, the influence of the holonomy correction (with μ\overline{\mu}-scheme) on the homogeneous and the inhomogeneous cosmological models have been extensively studied in the case of flat space. In this paper,using the K-Quantization method and the μ\overline{\mu}-scheme,in the same framework of LQC,we construct the Hamiltonian constraint operator of the closed FRW model (k=+1), we show that the effective semi-classical limit gives the same holonomy correction expression that was already used in the case of a flat space. We also derive the modified Friedman equation. The numerical investigation is performed to plot the effective evolution of the massless scalar field in term of the volume,which indicate a minimum volume at the bounce and also a suitable infrared behavior.The condition that we apply to constrain the value of μ\overline{\mu} in the semi-classical limit is consistent with the numerical results.

Keywords

Cite

@article{arxiv.2310.07012,
  title  = {Effective Hamiltonian of the k=+1 FRW model from the K-Quantization method in LQC},
  author = {Akram Hasseine},
  journal= {arXiv preprint arXiv:2310.07012},
  year   = {2023}
}

Comments

23 pages, 3 figures in preparation for submitting in a journal