7 citations · 10 across the 4 of their papers we have counts for
5 papers · 1 filter
Differential Equations for Massive Correlators
Daniel Baumann, Austin Joyce, Hayden Lee +1
We uncover a combinatorial structure governing the differential equations satisfied by wavefunction coefficients of scalar fields with generic masses in de Sitter space. Using an i…
Constraints on Long-Range Forces in De Sitter Space
Daniel Baumann, Kurt Hinterbichler, Callum R. T. Jones +4
The representation theory of de Sitter space admits partially massless (PM) particles, but whether such particles can participate in consistent interacting theories remains unclear…
Geometry of Kinematic Flow
Daniel Baumann, Harry Goodhew, Austin Joyce +3
We uncover a geometric organization of the differential equations for the wavefunction coefficients of conformally coupled scalars in power-law cosmologies. To do this, we introduc…
Kinematic Flow and the Emergence of Time
Nima Arkani-Hamed, Daniel Baumann, Aaron Hillman +3
Perhaps the most basic question we can ask about cosmological correlations is how their strength changes as we smoothly vary kinematic parameters. The answer is encoded in differen…
Differential Equations for Cosmological Correlators
Nima Arkani-Hamed, Daniel Baumann, Aaron Hillman +3
Cosmological fluctuations retain a memory of the physics that generated them in their spatial correlations. The strength of correlations varies smoothly as a function of external k…