2020/01/08 by Shinta Kasuya, Masahiro Kawasaki, Francis Otani +1
Physics and Astronomy · #Black Holes and Theoretical Physics #De Sitter universe #High-Energy Particle Collisions Research #Lattice (music) #Metastability #Modulus #Quantum Chromodynamics and Particle Interactions #String (physics) #Volume (thermodynamics) #hep-ph
paper · pdf · doi:10.1103/physrevd.102.043016
published as Phys. Rev. D 102, 043016 (2020) · 8pages, 11 figures
arxiv created 2020/01/08 · openalex created_date 2020/01/23 · openalex publication_date 2020/08/24 · arxiv updated 2020/09/02 · openalex updated_date 2026/08/05
Kachru-Kallosh-Linde-Trivedi (KKLT) scenario has succeeded in stabilizing the volume modulus and constructing metastable de Sitter (dS) vacua in type IIB string theory. We revisit to investigate the possibility of the oscillon (or I-ball) formation in the KKLT scenario when the volume modulus is initially displaced from the dS minimum. Special attention is paid to physically realistic initial conditions of the volume modulus, which was not taken in the literature. Using lattice simulations, we find that oscillons do not form unless the volume modulus is initially placed at very near the local maximum, which requires severe fine-tuning.