# Inflation as an Information Bottleneck

- Institution: CERN
- Department: Conferences & Workshops
- Speaker: Alexander Westphal
- Year: 2019
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3016160)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

We discuss how tools from information theory combined with machine learning a direct map from the microscopic parameters of a string inflation mechanism to the CMB observables allows us to systematically estimate the observable footprint of the theory uncertainty. We demonstrate this using the example mechanism of single-field axion monodromy inflation. We find that inflation acts as an information bottleneck, with a surprising number of microscopic parameters decoupling from the CMB observables..

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## Lectures

1. [Inflation as an Information Bottleneck](https://invisiblenetwork.ai/learn/cern/3016160/3843947e06ae), 33 min (CERN's player)