190 citations · 1.1k across the 50 of their papers we have counts for
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astro-ph.CO2011★ 7 cited
Horizon-preserving dualities and perturbations in non-canonical scalar field cosmologies
Ghazal Geshnizjani, William H. Kinney, Azadeh Moradinezhad Dizgah
We generalize the cosmological duality between inflation and cyclic contraction under the interchange to the case of non-canonical scalar field theories with…
astro-ph.CO2011★ 31 cited
General conditions for scale-invariant perturbations in an expanding universe
Ghazal Geshnizjani, William H. Kinney, Azadeh Moradinezhad Dizgah
We investigate the general properties of expanding cosmological models which generate scale-invariant curvature perturbations in the presence of a variable speed of sound. We show…