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Open EFT treatment of Inflation with Thermal Initial Conditions

2024/02/28 by Abbas Altafhussain Tinwala, Tinwala, Abbas, Ashish Narang +5 · 2 citations
Economics, Econometrics and Finance · #Market Dynamics and Volatility

paper · pdf · doi:10.48550/arxiv.2402.18494

Abstract

Investigating the thermal inflationary model, we introduce stochastic effects, incorporating a cutoff parameter σ which distinguishes between quantum and classical modes. Testing the model against Planck 2018 data, we observe a preference for a non-zero σ at least at 68% C.L., suggesting the classicalization of most modes and providing a theoretical foundation for the quantum to classical transition. As a result of introducing the stochastic effects, we find that the solution to the large-scale power deficit requires a lower comoving temperature of inflaton.

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