A quadratic extension of pre-geometric gravity yields a gravi-axion that naturally realizes dynamical dark energy and fits DESI observations with chi-squared_red = 1.394.
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gr-qc 2years
2026 2verdicts
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MCMC fitting of joint P-ACT-LB-BK18 dataset constrains non-canonical parameter alpha to 8.8, 11.7, and 16.4 (1 sigma) for chaotic inflation potentials with n=1/3, 2/3, 1 respectively.
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DESI and Dynamical Dark Energy from Extended Pre-geometric Gravity
A quadratic extension of pre-geometric gravity yields a gravi-axion that naturally realizes dynamical dark energy and fits DESI observations with chi-squared_red = 1.394.
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Constraints on non-canonical chaotic inflation from ACT DR6 and BICEP/Keck data
MCMC fitting of joint P-ACT-LB-BK18 dataset constrains non-canonical parameter alpha to 8.8, 11.7, and 16.4 (1 sigma) for chaotic inflation potentials with n=1/3, 2/3, 1 respectively.