2024/12/29 by Ivano Basile, Dieter Lüst · 9 citations
Mathematics · Physics and Astronomy · Psychology · #Black Holes and Theoretical Physics #Communication #Cosmology and Gravitation Theories #Dimension (graph theory) #Galaxies: Formation, Evolution, Phenomena #Mathematics #Psychology #Pure mathematics
paper · doi:10.1002/prop.202400265
published in Fortschritte der Physik 73(4) (Wiley)
openalex publication_date 2024/12/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron size with the standard model localized on D‐branes. Our explicit top‐down worldsheet derivation establishes it on a more solid grounding. Allowing some fine‐tuning, such that the vacuum energy only arise at higher orders in string perturbation theory, the “little string theory” scenario with a very weakly coupled string is an alternative possibility. In this case, the string scale lies at the edge of detectability of particle accelerators.