2-3 pm: Hamiltonian Truncation and Effective Field Theory
2-3 pm: Hamiltonian Truncation and Effective Field Theory
- Event time: 1:30pm until 3:30pm
- Event date: 17th June 2025
- Speaker: Kara Farnsworth (University of Geneva)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) (James Clerk Maxwell Building (JCMB)) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
Title: Hamiltonian Truncation and Effective Field Theory
Abstract: Hamiltonian truncation is a non-perturbative numerical method, complementary to the lattice, 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 and discuss how they can be applied to Hamiltonian truncation calculations. This effective field theory approach provides a systematic way of improving the accuracy of calculations without increasing the computational cost. I will demonstrate this in detail with numerical results in 2d phi^4 theory, and talk about ongoing and future applications of this method to more complicated theories.
About Particle Physics Theory seminars
The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..