Work

Quantum integration of elementary particle processes

Year: 2022

Type: article

Abstract: We apply quantum integration to elementary particle-physics processes. In particular, we look at scattering processes such as e+e−→qq¯ and e+e−→qq¯′W. The corresponding probability distributions can be first appropriately loaded on a quantum computer using either quantum Generative Adversarial Networks or an exact method. The distributions are then integrated using the method of Quantum Amplitude Estimation which shows a quadratic speed-up with respect to classical techniques. In simulations of noiseless quantum computers, we obtain per-cent accurate results for one- and two-dimensional integration with up to six qubits. This work paves the way towards taking advantage of quantum algorithms for the integration of high-energy processes.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2022.137228

Authors: Gabriele Agliardi, Michele Grossi, Mathieu Pellen, Enrico Prati