Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kodaxis, G. P."'
We extend our previous work on the enhancement of the curvature spectrum during inflation to the two-field case. We identify the slow-roll parameter $\eta$ as the quantity that can trigger the rapid growth of perturbations. Its two components, $\eta_
Externí odkaz:
http://arxiv.org/abs/2203.15605
We study single-field inflationary models with steep step-like features in the potential that lead to the temporary violation of the slow-roll conditions during the evolution of the inflaton. These features enhance the power spectrum of the curvature
Externí odkaz:
http://arxiv.org/abs/2106.02467
Publikováno v:
Phys. Rev. D 104, 023506 (2021)
We discuss features of the inflaton potential that can lead to a strong enhancement of the power spectrum of curvature perturbations. We show that a steep decrease of the potential induces an enhancement of the spectrum by several orders of magnitude
Externí odkaz:
http://arxiv.org/abs/2010.12483
Publikováno v:
Appl. Phys. Lett. 110, 121106 (2017)
A recursive scheme for the design of scatterers acting simultaneously as emitters and absorbers, such as lasers and coherent perfect absorbers in optics, at multiple prescribed frequencies is proposed. The approach is based on the assembly of non-Her
Externí odkaz:
http://arxiv.org/abs/1609.04211
We study single-field inflationary models with steep steplike features in the potential that lead to the temporary violation of the slow-roll conditions during the evolution of the inflaton. These features enhance the power spectrum of the curvature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2127::4c5889feb90c3ef0ec6432b041e208d7
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3032728
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3032728
We discuss features of the inflaton potential that can lead to a strong enhancement of the power spectrum of curvature perturbations. We show that a steep steplike feature induces an enhancement of the spectrum by several orders of magnitude within a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2127::36451bb33b5a678402f596eb3b09aa2c
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3029950
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3029950
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Akademický článek
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