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The Parameterized Post-Friedmannian Framework for Interacting Dark Energy Theories

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arxiv 1502.07297 v2 pith:NRUC2GAJ submitted 2015-02-25 astro-ph.CO

The Parameterized Post-Friedmannian Framework for Interacting Dark Energy Theories

classification astro-ph.CO
keywords darkenergyinteractingtheoriesapproachincludeparameterizedpost-friedmannian
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the most general parametrisation of models of dark energy in the form of a scalar field which is explicitly coupled to dark matter. We follow and extend the Parameterized Post-Friedmannian approach, previously applied to modified gravity theories, in order to include interacting dark energy. We demonstrate its use through a number of worked examples and show how the initially large parameter space of free functions can be significantly reduced and constrained to include only a few non-zero coefficients. This paves the way for a model-independent approach to classify and test interacting dark energy theories.

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Cited by 5 Pith papers

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