Biconnection gravity produces extra geometric contributions to the Friedmann equations that act as effective dark energy; when parametrized in five common ways and fit to recent data, the Barboza-Alcaniz and logarithmic models are statistically competitive with LambdaCDM.
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The Viaggiu holographic dark energy model fits late-time data similarly to Lambda CDM, yielding Omega_m0 around 0.24 and a model parameter of 0.27-0.33, with AIC showing statistical indistinguishability.
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Cosmological test of a length-preserving biconnection gravity
Biconnection gravity produces extra geometric contributions to the Friedmann equations that act as effective dark energy; when parametrized in five common ways and fit to recent data, the Barboza-Alcaniz and logarithmic models are statistically competitive with LambdaCDM.
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Viaggiu holographic dark energy in light of DESI DR2
The Viaggiu holographic dark energy model fits late-time data similarly to Lambda CDM, yielding Omega_m0 around 0.24 and a model parameter of 0.27-0.33, with AIC showing statistical indistinguishability.