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2008

Modified scalar and tensor spectra in spinor driven inflation

Gredat, Damien, Shankaranarayanan, S.

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One of the firm predictions of the single-scalar field inflationary cosmology is the consistency relation between the scalar and tensor perturbations.

It has been argued that such a relation, if observationally verified, would offer strong support for the idea of inflation.
In this letter, we critically analyze the validity of the consistency relation in the context of spinflation.
Spinflaton -- a scalar condensate of the Elko field -- has a single scalar degree of freedom and leads to the identical acceleration equation as the single canonical scalar field.

Modified scalar and tensor spectra in spinor driven inflation · Around

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