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- W4365458987 abstract "A bstract We study production of dark relics during reheating after the end of inflation in a system consisting of a non-minimally coupled spectator scalar field and the inflaton. We derive a set of renormalized quantum transport equations for the one-point function and the two-point function of the spectator field and solve them numerically. We find that our system can embody both tachyonic and parametric instabilities. The former is an expected result due to the non-minimal coupling, but the latter displays new features driven by a novel interplay of the two-point function with the Ricci scalar. We find that when the parametric instability driven by the two-point function takes place, it dominates the total particle production. The quantitative results are also found to be highly sensitive to the model parameters." @default.
- W4365458987 created "2023-04-15" @default.
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- W4365458987 date "2023-04-11" @default.
- W4365458987 modified "2023-09-30" @default.
- W4365458987 title "Tachyonic production of dark relics: a non-perturbative quantum study" @default.
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- W4365458987 doi "https://doi.org/10.1007/jhep04(2023)043" @default.
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