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Stochastic field theory applied to the formation of large-scale structure

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If you have a question about this talk, please contact Fiona McCarthy .

Describing and modelling stream/shell-crossing in dark matter clustering is a long-lasting theoretical challenge in large-scale structure formation. Current perturbative approaches, based on effective field theories, address the issue by introducing free parameters (counterterms) that capture these non-linear effects on large scales. In the talk, I will present a Lagrangian formalism that incorporates these effects from first principles, offering a more fundamental perspective. I will discuss some of the recent results and explore future prospects and potential development directions.

This talk is part of the Cosmology Lunch series.

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Clifford Albutt Lecture Theatre, Clinical School, Addenbrooke's Hospital LR4, Cambridge University Engineering Department https://cam-ac-uk.zoom.us/j/91018608864?pwd=MnNmWVFmNDNVV1M5Qmx3MW9XVDY0Zz09

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