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arXiv · astro-ph/0111557

Time-dependent correlations of inflationary perturbations

Wo-Lung Lee·Li-Zhi Fang
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Abstract

We show that if the primordial classical perturbations were generated by the gravitational particle creation during inflation, and followed by an evolution of quantum-to-classical transition,the time dependent correlation of these perturbations is long-tailed with a correlation time larger than the Hubble-time. Consequently, the inflationary perturbations are locally scale-scale correlated. Hence, the interaction of the fields during inflation can be explored via the detection of the local scale-scale correlation of the CMB fluctuations.

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Wo-Lung Lee, Li-Zhi Fang. 2001-11-29. Time-dependent correlations of inflationary perturbations. https://doi.org/10.1209/epl%2Fi2001-00605-7

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