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Towards a Universe from Strings: building bridges between geometry and the cosmos

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If you have a question about this talk, please contact Gonzalo Villa.

String theory provides our most developed framework for unifying quantum mechanics and gravity, but connecting it to the physics of our Universe requires a detailed understanding of how ten-dimensional geometry gives rise to four-dimensional cosmology. In this talk, I will discuss recent progress toward this goal using a combination of new analytic techniques and large-scale computational tools. I will highlight our recent construction of explicit candidate de Sitter solutions, as well as new mechanisms for generating hierarchies of scales. I will further discuss how Bayesian methods let us map axion spectra across the string landscape and confront them with data from the CMB , and next-generation axion experiments.

This talk is part of the Cosmology Lunch series.

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