By A. Barvinsky

Initial conditions in cosmology in the form of the microcanonical density matrix of the Universe predict a thermal nature of the primordial CMB power spectrum with a nonzero temperature of the resulting relict temperature distribution. This effect generates a thermal contribution to the red tilt of this spectrum, additional to... Show more

May 18, 2013

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The $a$-theorem and temperature of the CMB temperature in cosmology

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