Research topic
Cosmological data constrain models without uniquely identifying their microscopic explanation.
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Research using string theory, geometry, duality, black-hole physics and quantum-gravity consistency to understand which effective theories can arise from quantum gravity and what those constraints might imply for particle physics and cosmology.
7 lessons · ~37 minutes
Explore the labRecommended through the concepts linked to this topic. Each lesson belongs to an existing learning series.
Strings, Geometry, and the Swampland
From quantum-gravity consistency to testable cosmologyTrace how a varying compactification radius can produce phenomenological predictions.
Supports: Cosmology
Accepted for publication, Phys. Rev. D; arXiv v3 May 2026 · 2025
A. Bedroya, G. Obied, C. Vafa, D. H. Wu
Why this matters: Models evolving energy and dark-matter masses. A comparable cosmological fit does not establish the microscopic Dark Dimension explanation.
DOI: 10.1103/1rsq-cv2m