Cosmological diagrammatic rules
Giddings, Steven B. · Sloth, Martin S.
High Energy Physics - Theory
Cosmology and Nongalactic Astrophysics
Statistical Mechanics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Original · EN
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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