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Scalar tilt from broken conformal invariance · Around

2010

Scalar tilt from broken conformal invariance

Rubakov, V., Osipov, M.

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Within recently proposed scenario which explains flatness of the spectrum of scalar cosmological perturbations by a combination of conformal and global symmetries, we discuss the effect of weak breaking of conformal invariance.

We find that the scalar power spectrum obtains a small tilt which depends on both the strength of conformal symmetry breaking and the law of evolution of the scale factor.

Built on

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