Abstract
The universe might experience many cycles with different vacua. The slow-roll inflation may be preceded by kinetic-dominated contraction occurring in "adjacent" vacua during some cycles. In this report we briefly show this phenomenon may lead to a cutoff of primordial power spectrum. Thus in some sense the CMB at large angular scale might encode the information of other vacua.
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Submitted on 17 Feb 2005 (v1), last revised 26 Apr 2005 (this version, v2)
Updated
arXiv.org
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