An Efficient Framework for Simulating 3+1-Dimensional Lattice Gauge Theories with Fermions

7 Aug 2026, 14:30
30m
Lecture Hall (Kavli IPMU)

Lecture Hall

Kavli IPMU

Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8583, Japan

Speaker

Arnab Pradhan

Description

Hamiltonian lattice gauge theories provide access to important physics that remains difficult to study using conventional Euclidean methods. Quantum computers are naturally suited to implementing such formulations. With near-term quantum hardware in mind, we present an efficient framework for incorporating fermionic matter into 3+1-dimensional lattice gauge theories. The key idea is to combine trivalent lattice geometries with staggered fermions, reducing the local Hilbert-space dimension while preserving gauge invariance and the essential physics of the underlying theory. This construction offers a scalable route toward quantum simulations of non-Abelian gauge theories with fermions in 3+1 dimensions.

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