PreprintCC BY 4.0arXiv
Holographic dark energy in Einstein-Cartan spin cosmology
Abstract
We show that, in Einstein-Cartan theory, the torsion scalar modifies the dust-like equation of state of non-interacting holographic dark energy with the Hubble radius as the infrared cutoff, enabling late-time cosmic acceleration within the low-redshift domain of validity, which is not realized in the corresponding model in general relativity. Using the same holographic dark energy background, we further derive the torsion-induced modification of the cosmic distance duality relation, dL=dA(1+z)2(1+η). In the late-time universe, the magnitude of the deviation parameter, |η|, is small but non-vanishing, reflecting the cumulative effect of torsion along the light-propagation path.
Versions
Related
- Holographic Dark Energy with Hubble Radius as an Infrared Cutoff in Einstein-Cartan Gravity
- Entropy applications in cosmology: spacetime thermodynamics, holographic dark energy, entropic gravity and beyond - a review
- Gravitational Dark Matter Production in Einstein-Cartan Theory
- Observational constraints on fractional holographic dark energy in the light of DESI DR2
- Ricci-Non-metric Holographic Dark Energy
BibTeX
@misc{yun2026holographic,
title = {{Holographic dark energy in Einstein-Cartan spin cosmology}},
author = {Yongjun Yun and Jungjai Lee},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.36853},
eprint = {2609.36853},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.36853},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Holographic dark energy in Einstein-Cartan spin cosmology
AU - Yongjun Yun
AU - Jungjai Lee
PY - 2026
DA - 2026/09/29
PB - arXiv
DO - 10.48550/arxiv.2609.36853
UR - https://arxiv.org/abs/2609.36853
AB - We show that, in Einstein-Cartan theory, the torsion scalar modifies the dust-like equation of state of non-interacting holographic dark energy with the Hubble radius as the infrared cutoff, enabling late-time cosmic acceleration within the low-redshift domain of validity, which is not realized in the corresponding model in general relativity. Using the same holographic dark energy background, we further derive the torsion-induced modification of the cosmic distance duality relation, d_L=d_A(1+z)^2(1+η). In the late-time universe, the magnitude of the deviation parameter, |η|, is small but non-vanishing, reflecting the cumulative effect of torsion along the light-propagation path.
ER -