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Kinematic Flow and the Emergence of Time

Nima Arkani-Hamed¹, Daniel Baumann^2,3,4, Aaron Hillman^5,6, Austin Joyce ^7,8, Hayden Lee ⁸, and Guilherme L. Pimentel ⁹

¹Institute for Advanced Study, Princeton, New Jersey 08540, USA
²Leung Center for Cosmology and Particle Astrophysics, Taipei 10617, Taiwan
³Center for Theoretical Physics, National Taiwan University, Taipei 10617, Taiwan
⁴Institute of Physics, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
⁵Walter Burke Institute for Theoretical Physics, Caltech, Pasadena, California 91125, USA
⁶Department of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08540, USA
⁷Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637, USA
⁸Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
⁹Scuola Normale Superiore and INFN, Piazza dei Cavalieri 7, 56126 Pisa, Italy

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Articles Citing

Kinematic Flow and the Emergence of Time

The cosmological CPT theorem

Correlators Are Simpler than Wave Functions

Geometry of In-In Correlators

Correlator polytopes

Generalised cluster adjacency for cosmology

Kinematic flow for banana loops and unparticles

On in-in correlators for spinning theories and their shadow formulation

Dimensional regularization of bubble diagrams in de Sitter spacetime

Holographic cosmology at finite time

Massive inflationary amplitudes: new representations and degenerate limits

Strongly coupled sectors in inflation: gapless theories and unparticles

Kinematic flow from the flow of cuts

On the simplicity of de Sitter correlators

A reduction algorithm for cosmological correlators: cuts, contractions, and complexity

Geometry of kinematic flow

Cluster algebras for cosmological correlators

Mastering cosmological amplitudes using generalized Ramanujan’s theorem

Cosmological weight-shifting matrices

Higher-spin correlators in dS

Anatomy of family trees in cosmological correlators

Massive inflationary amplitudes: differential equations and complete solutions for general trees

A note on kinematic flow and differential equations for two-site one-loop graph in FRW spacetime

Cosmohedra

Differential equations for tree-level cosmological correlators with massive states

Amplitubes: graph cosmohedra

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