{
  "annotation_id": "3deedaa4-4272-497b-954e-9a86d7cb0f2a",
  "date_created": "2026-02-17T05:53:23.792000Z",
  "date_modified": "2026-02-17T05:53:23.792000Z",
  "file_hash": "3b1cb462418229c1b95b5fb4cc262bd7caaca4ab91da752e7cf39406cc776b5f",
  "private": false,
  "record": {
    "abstract": "We explore the cosmological dynamics of a teleparallel Gauss-Bonnet gravity model defined by the torsion scalar $T$ and the torsion-based Gauss-Bonnet invariant $T_{\\mathcal{G}}$, deriving modified Friedmann equations for a flat FLRW Universe and corresponding linear scalar perturbation equations. Using a numerical approach, we solve these equations for pressureless matter, predicting the redshift evolution of the Hubble parameter $H(z)$. Bayesian Markov chain Monte Carlo analysis, incorporating late-time observations from Cosmic Chronometers, Pantheon$^+$ with SH0ES, and DESI BAO (Data Release 1 and Data Release 2), constrains the model parameters, revealing that $f(T, T_{\\mathcal{G}})$ mimics dark energy in the absence of a cosmological constant, presenting a viable alternative to $\\Lambda$CDM paradigm. Stability is confirmed via scalar perturbation analysis of Hubble and matter density fluctuations, positioning $f(T, T_{\\mathcal{G}})$ gravity as a robust framework to address cosmic acceleration challenges. The model yields a present-day effective equation of state $\\omega_{\\mathrm{eff}}(z=0) \\approx -0.664$ to \\(-0.693\\), consistent with observations, and partially alleviates the Hubble tension with $H_0$ estimates of 69 to 71.5\\kms. These findings highlight the potential of $f(T, T_{\\mathcal{G}})$ gravity to resolve fundamental cosmological puzzles while aligning with late-time observational data.",
    "arxiv_id": "2601.10127",
    "authors": [
      "Santosh V. Lohakare",
      "S. K. Maurya",
      "Aaisha Al Qassabi",
      "B. Mishra"
    ],
    "categories": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Hubble Tension and Dark Energy in Teleparallel Gauss-Bonnet Gravity: New Constraints from DESI BAO, Pantheon$^+$ and Hubble Data",
    "url": "https://arxiv.org/abs/2601.10127",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "07b50140-4857-4dab-8541-a4baccea8902",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}