Geometrical causality: casting Feynman integrals into quantum algorithms

• URL: http://arxiv.org/abs/2305.08550v1
• Date: Mon, 15 May 2023 11:22:51 GMT
• Title: Geometrical causality: casting Feynman integrals into quantum algorithms
• Authors: German F. R. Sborlini
• Abstract summary: We discuss efficient strategies based on the Loop-Tree Duality, its manifestly causal representation and the underlying geometrical interpretation. In concrete, we exploit the geometrical causal selection rules to define a Hamiltonian whose ground-state is directly related to the terms contributing to the causal representation. In this way, the problem can be translated into a minimization one and implemented in a quantum computer to search for a potential speed-up.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The calculation of higher-order corrections in Quantum Field Theories is a challenging task. In particular, dealing with multiloop and multileg Feynman amplitudes leads to severe bottlenecks and a very fast scaling of the computational resources required to perform the calculation. With the purpose of overcoming these limitations, we discuss efficient strategies based on the Loop-Tree Duality, its manifestly causal representation and the underlying geometrical interpretation. In concrete, we exploit the geometrical causal selection rules to define a Hamiltonian whose ground-state is directly related to the terms contributing to the causal representation. In this way, the problem can be translated into a minimization one and implemented in a quantum computer to search for a potential speed-up.

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