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arXiv · 1502.03125

Computing observables in curved multifield models of inflation - A guide (with code) to the transport method

Mafalda Dias·Jonathan Frazer·David Seery
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Abstract

We describe how to apply the transport method to compute inflationary observables in a broad range of multiple-field models. The method is efficient and encompasses scenarios with curved field-space metrics, violations of slow-roll conditions and turns of the trajectory in field space. It can be used for an arbitrary mass spectrum, including massive modes and models with quasi-single-field dynamics. In this note we focus on practical issues. It is accompanied by a Mathematica code which can be used to explore suitable models, or as a basis for further development.

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Mafalda Dias, Jonathan Frazer, David Seery. 2015-02-10. Computing observables in curved multifield models of inflation - A guide (with code) to the transport method. https://arxiv.org/abs/1502.03125

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