Kinematic Flow and the emergence of time

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• Guilherme Pimentel (SNS, Pisa)
• Monday 13 November 2023, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact Dr Dong-Gang Wang.

I will present a toy model of cosmology where time evolution of the perturbations follow from a set of static differential equations of its correlation functions. As we change the positions of the fluctuations whose correlations we measure, the correlation function changes in a way that is consistent with rules that I will explain. These rules are a recasting of cherished local, unitary time evolution, albeit without explicit mentioning of time anywhere. This suggests that static differential equations might offer a new organizing principle for cosmological perturbation theory.

This talk is part of the Cosmology Lunch series.

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