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- W4220884087 abstract "The quantum to classical transition of fluctuations in the early universeis still not completely understood. Some headway has been made incorporating the effectsof decoherence and the squeezing of states, though the methods and procedures continueto be challenged. But new developments in the analysis of the most recent {it Planck} datasuggest that the primordial power spectrum has a cutoff associated with thevery first quantum fluctuation to have emerged into the semi-classical universe from thePlanck domain at about the Planck time. In this paper, we examine the implications ofthis result on the question of classicalization, and demonstrate that the birth ofquantum fluctuations at the Planck scale would have been a `process' supplanting theneed for a `measurement' in quantum mechanics. Emerging with a single wavenumber, thesefluctuations would have avoided the interference between different degrees of freedomin a superposed state. Moreover, the implied scalar-field potential had an equation-of-stateconsistent with the zero active mass condition in general relativity, allowing thequantum fluctuations to emerge in their ground state with a time-independent frequency.They were therefore effectively quantum harmonic oscillators with classical correlationsin phase space from the very beginning." @default.
- W4220884087 created "2022-04-03" @default.
- W4220884087 creator A5048777040 @default.
- W4220884087 date "2022-03-01" @default.
- W4220884087 modified "2023-10-16" @default.
- W4220884087 title "Classicalization of quantum fluctuations at the Planck scale in the R_h = ct universe" @default.
- W4220884087 doi "https://doi.org/10.31219/osf.io/4vq2w" @default.
- W4220884087 hasPublicationYear "2022" @default.
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