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Commutative and non-commutative signatures of anisotropic inflation: constraints from planck PR4 data

open access: yesPhysica Scripta
Abstract We present a comparative study of anisotropic inflationary signatures in both commutative and non-commutative spacetime frameworks, using three anisotropic metrics (Models I–III) as inflationary backgrounds. For each model, we consider the primordial scalar power spectrum computed with the in–in formalism,
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