Can structure formation distinguish between holographic dark energy models?
Abstract
Structure formation has been used to test the viability of the IR cutoff in the THDE model, and the future event horizon was found to be a viable IR cutoff (Phys. Rev. D {\bf 113}, 123531 (2026)). Motivated by this, in this paper, using the combined Pantheon+ SN Ia, OHD, DESI DR2, and CMB distance prior datasets, we constrain the model parameters for the HDE, THDE, and BHDE models, and use parameter sets from the MCMC samples to analyze the evolution of fσ8(z) and S8(z) for these models. We find that the evolutionary curves of both fσ8(z) and S8(z) for HDE and BHDE are nearly indistinguishable, while the curves for the THDE model lie lowest. The χ2 statistic shows that the THDE model yields the lowest χ2 value for both fσ8 and S8 measurements. Finally, we construct the (fσ8,S8) plane as a diagnostic to analyze the trajectories of these models, and find that the trajectory of the THDE model can achieve the current (fσ8,S8) data region. These results demonstrate that structure formation can distinguish THDE from HDE and BHDE, and suggest that structure formation can serve as a useful probe for distinguishing HDE models and can be extended to other HDE scenarios.
Related
- Holographic dark energy in Einstein-Cartan spin cosmology
- Observational constraints on fractional holographic dark energy in the light of DESI DR2
- Ricci-Non-metric Holographic Dark Energy
- A closer look at Viaggiu Holographic Dark Energy with Statefinder Hierarchy and Fractional Growth Diagnostics
- Kaniadakis Holographic Dark Energy with Particle Horizon as IR Cutoff
BibTeX
@misc{huang2026structure,
title = {{Can structure formation distinguish between holographic dark energy models?}},
author = {Qihong Huang and Bing Xu and Kaituo Zhang and Hao Chen},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.01430},
eprint = {2610.01430},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.01430},
}
RIS
TY - UNPB
TI - Can structure formation distinguish between holographic dark energy models?
AU - Qihong Huang
AU - Bing Xu
AU - Kaituo Zhang
AU - Hao Chen
PY - 2026
DA - 2026/10/01
PB - arXiv
DO - 10.48550/arxiv.2610.01430
UR - https://arxiv.org/abs/2610.01430
AB - Structure formation has been used to test the viability of the IR cutoff in the THDE model, and the future event horizon was found to be a viable IR cutoff (Phys. Rev. D {\bf 113}, 123531 (2026)). Motivated by this, in this paper, using the combined Pantheon+ SN Ia, OHD, DESI DR2, and CMB distance prior datasets, we constrain the model parameters for the HDE, THDE, and BHDE models, and use parameter sets from the MCMC samples to analyze the evolution of fσ_8(z) and S_8(z) for these models. We find that the evolutionary curves of both fσ_8(z) and S_8(z) for HDE and BHDE are nearly indistinguishable, while the curves for the THDE model lie lowest. The χ^2 statistic shows that the THDE model yields the lowest χ^2 value for both fσ_8 and S_8 measurements. Finally, we construct the (fσ_8,S_8) plane as a diagnostic to analyze the trajectories of these models, and find that the trajectory of the THDE model can achieve the current (fσ_8,S_8) data region. These results demonstrate that structure formation can distinguish THDE from HDE and BHDE, and suggest that structure formation can serve as a useful probe for distinguishing HDE models and can be extended to other HDE scenarios.
ER -