Linear Response on a Quantum Computer
Alessandro Roggero, Joseph Carlson
TL;DR
This paper introduces a quantum algorithm to compute the dynamic linear response function of quantum systems, enabling direct comparison with experimental data and advancing the study of strongly-interacting quantum phenomena.
Contribution
The paper presents a novel quantum algorithm for calculating the dynamic linear response with controlled errors, facilitating experimental comparisons.
Findings
Algorithm accurately computes linear response functions.
Enables direct comparison with experimental scattering data.
Applicable to strongly-interacting quantum systems.
Abstract
The dynamic linear response of a quantum system is critical for understanding both the structure and dynamics of strongly-interacting quantum systems, including neutron scattering from materials, photon and electron scattering from atomic systems, and electron and neutrino scattering by nuclei. We present a general algorithm for quantum computers to calculate the dynamic linear response function with controlled errors and to obtain information about specific final states that can be directly compared to experimental observations.
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