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.
Schr¨ odinger,Space-Time Structure (Cambridge University Press, Cambridge, 1985)
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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.