A non-variational method for coupling scalar fields to gravity reproduces known models and produces asymptotically Kasner Bianchi I solutions under specific conditions.
An introduction to inflation and cosmological perturbation theory
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The equilateral bispectrum from massive scalar exchange in inflation is not universally negative in the full EFT of inflation; its sign depends on a critical ratio of operator coefficients.
Genetic algorithm reconstructs single-field inflationary models with features in the scalar power spectrum that fit Planck 2018 CMB data better by Δχ² ≲ -10 and suggest alternative background parameters.
No violation of the bipartite temporal Bell inequality occurs for coherent states of primordial perturbations, with only slight differences from the squeezed vacuum case at large squeezing and a unique dependence on the imaginary phase of the wave function.
citing papers explorer
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A general formalism for coupling scalar fields to the Einstein equations without a variational principle
A non-variational method for coupling scalar fields to gravity reproduces known models and produces asymptotically Kasner Bianchi I solutions under specific conditions.
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Massive Exchange and the Sign of the Equilateral Bispectrum
The equilateral bispectrum from massive scalar exchange in inflation is not universally negative in the full EFT of inflation; its sign depends on a critical ratio of operator coefficients.
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Reconstructing inflationary features on large scales using genetic algorithm
Genetic algorithm reconstructs single-field inflationary models with features in the scalar power spectrum that fit Planck 2018 CMB data better by Δχ² ≲ -10 and suggest alternative background parameters.
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Bipartite temporal Bell inequality for squeezed coherent state of inflationary perturbations
No violation of the bipartite temporal Bell inequality occurs for coherent states of primordial perturbations, with only slight differences from the squeezed vacuum case at large squeezing and a unique dependence on the imaginary phase of the wave function.