Publication date: Dec 17, 2021
Stable bound quantum states are ubiquitous in nature. Mostly, they result from the interaction of only pairs of particles, so called two-body interactions, even when large complex many-particle structures are formed. We show that three-particle bound states occur in a generic, experimentally accessible solid state system: antiferromagnetic spin ladders, related to high-temperature superconductors. Strikingly, this binding is induced by genuine three-particle interactions; without them there is no bound state. We compute the dynamic exchange structure factor required for the experimental detection of the predicted state by resonant inelastic x-ray scattering for realistic material parameters. Our work enables us to quantify these elusive interactions and unambiguously establishes their effect on the dynamics of the quantum many-particle state. The data provided here contains the Green function and the weights of the dynamic exchange structure factor and the corresponding Lanczos coefficients.
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|1.9 KiB||README file explaining the file structure|
Source Data NSC.zip
|828.7 MiB||Source data for the NSC observable|
Source Data SCasym.zip
|747.4 MiB||Source data for the asymmetric SC observable|
Source Data SCsymm.zip
|1011.0 MiB||Source data for the symmetric SC observable|