Original language | English |
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Article number | 123530 |
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Number of pages | 11 |
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Journal | Physical Review D |
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Volume | 100 |
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Issue number | 12 |
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DOIs | |
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Publication status | Published - 18 Dec 2019 |
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The implications of the recently proposed trans-Planckian censorship conjecture (TCC) are analyzed in the context of warm inflation. It is found that for a single-stage accelerated expansion the constraints imposed by the censorship are roughly the same as for cold inflation. Next, we study how a two-stage inflationary expansion with an intermediate radiation-dominated era can alleviate the bounds imposed by the censorship. For a demonstrative toy model we found r<10−23, but can be r<10−5 for a weaker form of TCC for the later stages of expansion, while still satisfying the other swampland conditions.
- hep-ph, astro-ph.CO, gr-qc, hep-th
ID: 136592064