# Hamiltonian Truncation and Effective Field Theory

- Institution: CERN
- Speaker: Kara Farnsworth
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3023661)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Hamiltonian truncation is a nonperturbative numerical method for calculating observables of a quantum field theory by truncating the Hilbert space to states with energy below a maximum energy cutoff. In this talk I will provide an overview of effective field theory techniques applied to Hamiltonian truncation calculations, focusing on improving convergence and handling marginal interactions in a 2d example system.

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## Lectures

1. [Hamiltonian Truncation and Effective Field Theory](https://invisiblenetwork.ai/learn/cern/3023661/511d63762b00), 49 min (CERN's player)