Quantum computation of scattering amplitudes in scalar quantum electrodynamics
Kübra Yeter‐Aydeniz, George Siopsis · Physical review. D/Physical review. D. · 2018
We present a quantum algorithm for the calculation of scattering amplitudes of massive charged scalar particles in scalar quantum electrodynamics. Our algorithm is based on continuous-variable quantum computing architecture resulting in exponential speedup over classical methods. We derive a simple form of the Hamiltonian including interactions and a straightforward implementation of the constraint due to gauge invariance.