Topic: New constraints on ultra-light axions as dark matter are derived from DESI DR1, Planck, and ACT data.
Topic: Anisotropic Dirac-Born-Infeld inflation with non-vacuum initial states is investigated for primordial perturbations and non-Gaussianity.
Topic: Nonparametric expansion-growth reconstruction is proposed to break the degeneracy between dark energy and dark sector interactions.
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