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  • art%3A10.1007%2FJHEP08%282014%29116

    Rights statement: Open Access, c The Authors. Article funded by SCOAP3. The original publication is available at www.link.springer.com

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Atick-Witten Hagedorn Conjecture, near scale-invariant matter and blue-tilted gravity power spectrum

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Article number116
<mark>Journal publication date</mark>21/08/2014
<mark>Journal</mark>Journal of High Energy Physics
Issue number8
Volume1408
Number of pages11
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We will provide an interesting new mechanism to generate almost scale invariant seed density perturbations with a red spectrum, while keeping the gravitational wave spectrum blue-tilted in a stringy thermal contracting phase at temperatures beyond the Hagedorn temperature. This phase is often referred to as the Hagedorn phase where the free energy has been conjectured by Atick and Witten to grow more slowly than ordinary radiation. The primordial fluctuations are created by the statistical thermal fluctuations determined by the partition function, rather than quantum vacuum driven fluid dynamical fluctuations. Our mechanism assumes a non-singular bounce.

Bibliographic note

Open Access, c The Authors. Article funded by SCOAP3. The original publication is available at www.link.springer.com