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This study investigates inflationary cosmology by combining f(φ)T gravity (a modified teleparallel gravity theory) with Gauss-Bonnet corrections, examining three different coupling schemes between the scalar field and gravitational terms. The research analyzes how these theoretical frameworks affect the dynamics of cosmic inflation in the early universe, comparing predictions with observational constraints from cosmic microwave background measurements. The authors evaluate the viability of each coupling scheme by calculating key inflationary parameters such as the spectral index and tensor-to-scalar ratio.
Why it matters
Understanding modified gravity theories during inflation helps constrain fundamental physics beyond general relativity and could explain the observed large-scale structure of the universe. These theoretical frameworks may provide testable predictions that future cosmological observations can verify or falsify, potentially revealing new physics at extreme energy scales.
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