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.

Quantum integration of elementary particle processes / G. Agliardi, M. Grossi, M. Pellen, E. Prati. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 832:(2022 Sep 10), pp. 137228.1-137228.10. [10.1016/j.physletb.2022.137228]

Quantum integration of elementary particle processes

E. Prati
Ultimo
2022-09-10

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.
Settore FIS/03 - Fisica della Materia
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
https://www.sciencedirect.com/science/article/pii/S0370269322003628
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/931062
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