Toward extracting scattering phase shift from integrated correlation functions on quantum computers

2025/04/20 by Guo, Peng · 1 citation
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Nuclear Theory (nucl-th) #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2504.14474

Abstract

Based on a established relation in Refs.~\citeGuo:2023ecc,Guo:2024zal,Guo:2024pvt that relates the integrated correlation functions for a trapped system to the infinite volume scattering phase shifts through a weighted integral, we propose to extract the infinite volume scattering phase shifts through quantum simulation of the integrated correlation functions of trapped two-particle systems on quantum computers. The integrated correlation function can be computed by an ancilla-based algorithm proposed in Ref.~\citePhysRevA.64.022319. The proposal is demonstrated with a simple contact interaction fermion model.

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