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arxiv: 1005.3287 · v1 · submitted 2010-05-18 · ✦ hep-th · astro-ph.CO· cond-mat.stat-mech· gr-qc· hep-ph

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Cosmological diagrammatic rules

Steven B. Giddings , Martin S. Sloth
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classification ✦ hep-th astro-ph.COcond-mat.stat-mechgr-qchep-ph
keywords rulesdiagrammaticcalculationalcorrelatorscosmologicalcosmologyefficientevaluation
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A simple set of diagrammatic rules is formulated for perturbative evaluation of ``in-in" correlators, as is needed in cosmology and other nonequilibrium problems. These rules are both intuitive, and efficient for calculational purposes.

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Cited by 1 Pith paper

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  1. Kinematic Flow for Banana Loops and Unparticles

    hep-th 2026-04 unverdicted novelty 6.0

    Banana loop cosmological correlators are captured by master integrals from tubings of marked graphs, with connection matrices derived from activation, merger, swap, and copy rules unique to unparticle exchanges.