The Trans-Planckian Censorship Conjecture in different frameworks of viable inflation

Abstract

We review the recently proposed Trans-Planckian Censorship Conjecture that stems from the Trans-Planckian problem of cosmological perturbations. We analyze the implications and constraints that TCC introduces in different frameworks of viable inflation. We revisit the case of slow-roll scalar field inflation and we investigate the cases of slow-roll $f(R)$ and $f(R,\varphi )$-gravity. Finally, we consider the conjecture in the context of constant-roll scalar field inflation.

arXiv comment14 pages, corrected some minor typos found post-publication

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Cited by in corpus (2)

• On the Trans-Planckian Censorship Conjecture and the Generalized Non-Minimal Coupling
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme