Abstract
Matrix theory is a proposed non-perturbative definition of superstring theory in which space is emergent. Recently, it was shown that space-time can emerge with a scale-invariant spectrum of cosmological perturbations which is sourced by thermal fluctuations of the BFSS model at finite temperature. Inspired by these results, we begin a study of the IKKT model at finite temperature. We find that in this model, which is closely related to the BFSS model at finite temperature, thermal fluctuations can also source a scale-invariant spectrum of scalar and tensor fluctuations.
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Acknowledgments
S.L. and S.B. wish to thank Simon Caron-Huot for useful discussions that inspired them to write this paper, and Robert Brandenberger and Keshav Dasgupta for useful comments on the draft. S.L. is supported in part by the Fonds de recherche du Québec (FRQNT). S.B. is supported in part by the Higgs Fellowship and by the STFC Consolidated Grant “Particle Physics at the Higgs Centre”. The research at McGill is supported in part by funds from NSERC and the Canada Research Chair program.
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Laliberte, S., Brahma, S. IKKT thermodynamics and early universe cosmology. J. High Energ. Phys. 2023, 161 (2023). https://doi.org/10.1007/JHEP11(2023)161
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DOI: https://doi.org/10.1007/JHEP11(2023)161