Browsing by Author "663fe42c-a920-4f74-991b-e4dfa354f76b"
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Romano, Antonio; Mooij, Sander; Sasaki, Misao (Elsevier, 2016)We carefully study the implications of adiabaticity for the behavior of cosmological perturbations. There are essentially three similar but different definitions of non-adiabaticity: one is appropriate for a thermodynamic ...