Facundo Rost
My research focuses on early-universe cosmology and quantum field theory in expanding spacetimes such as de Sitter space. In this context, I have been developing a framework for cosmological correlators that reveals their hidden simplicity and illuminates their geometric origin.
Research
Publications
de Sitter Gluon Correlators in Momentum Space
M. Nabavi, G. Pimentel, F. Rost, M. dos Santos and J. Trnka
arXiv:2610.28724 [hep-th].
AdS₃ Recursion Relations, Double Copy and CFT₂ Ward Identities
G. Mathys, G. Pimentel and F. Rost
arXiv:2609.12046 [hep-th].
Positive Geometry of Yang-Mills Correlators
M. Arundine, V. Calvo Cortes, J. Koefler and F. Rost
arXiv:2608.27594 [hep-th].
The Cosmological Grassmannian
M. Arundine, D. Baumann, M. Gordon Lee, G. Pimentel and F. Rost
arXiv:2602.07117 [hep-th].
Quasinormal Modes and the Switchback Effect in Schwarzschild-de Sitter
M. Faruk, F. Rost and J. P. van der Schaar
JHEP 07 (2025), 050; arXiv:2501.01388 [hep-th].
A New Twist on Spinning (A)dS Correlators
D. Baumann, G. Mathys, G. Pimentel and F. Rost
JHEP 01 (2025), 202; arXiv:2408.02727 [hep-th].
New Non-Perturbative de Sitter Vacua in α′-Complete Cosmology
C. Núñez and F. Rost
JHEP 03 (2021), 007; arXiv:2011.10091 [hep-th].
