478 citations · 1.9k across the 21 of their papers we have counts for
15 papers · 1 filter
Boostless Cosmological Collider Bootstrap
Guilherme L. Pimentel, Dong-Gang Wang
Cosmological correlation functions contain valuable information about the primordial Universe, with possible signatures of new massive particles at very high energies. Recent devel…
Linking the Singularities of Cosmological Correlators
Daniel Baumann, Wei-Ming Chen, Carlos Duaso Pueyo +3
Much of the structure of cosmological correlators is controlled by their singularities, which in turn are fixed in terms of flat-space scattering amplitudes. An important challenge…
The Cosmological Bootstrap: Spinning Correlators from Symmetries and Factorization
Daniel Baumann, Carlos Duaso Pueyo, Austin Joyce +2
We extend the cosmological bootstrap to correlators involving massless particles with spin. In de Sitter space, these correlators are constrained both by symmetries and by locality…
The Cosmological Bootstrap: Weight-Shifting Operators and Scalar Seeds
Daniel Baumann, Carlos Duaso Pueyo, Austin Joyce +2
A key insight of the bootstrap approach to cosmological correlations is the fact that all correlators of slow-roll inflation can be reduced to a unique building block---the four-po…
Real-Time Corrections to the Effective Potential
Guilherme L. Pimentel, John Stout
Non-perturbatively generated effective potentials play an extremely useful and often critical role in string and inflationary model building. These potentials are typically compute…
The Cosmological Bootstrap: Inflationary Correlators from Symmetries and Singularities
Nima Arkani-Hamed, Daniel Baumann, Hayden Lee +1
Scattering amplitudes at weak coupling are highly constrained by Lorentz invariance, locality and unitarity, and depend on model details only through coupling constants and particl…