Single-particle digitization strategy for quantum computation of a $\phi^4$ scalar field theory

Understand

Motivated by the parton picture of high energy quantum chromodynamics, we develop a single-particle digitization strategy for the efficient quantum simulation of relativistic scattering processes in a $d+1$ dimensional scalar $\phi^4$ field theory.

• We work out quantum algorithms for initial state preparation, time evolution and final state measurements.
• We outline a non-perturbative renormalization strategy in this single-particle framework.