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- W2900538560 abstract "We investigate the spontaneous creation of primordial black holes in a lower-dimensional expanding early universe. We use the no-boundary proposal to construct instanton solutions for both the background and a black hole nucleated inside this background. The resulting creation rate could lead to a significant population of primordial black holes during the lower dimensional phase. We also consider the subsequent evaporation of these dimensionally reduced black holes and find that their temperature increases with mass, whereas it decreases with mass for 4-dimensional black holes. This means that they could leave stable sub-Planckian relics, which might in principle provide the dark matter." @default.
- W2900538560 created "2018-11-29" @default.
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- W2900538560 date "2018-12-19" @default.
- W2900538560 modified "2023-09-26" @default.
- W2900538560 title "Primordial black holes in a dimensionally reduced universe" @default.
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- W2900538560 doi "https://doi.org/10.1088/1475-7516/2018/12/033" @default.
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