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Bound by three-body interactions

Gary Ferkinghoff1*, Leanna Müller1, Umesh Kumar2, Götz S. Uhrig1, Benedikt Fauseweh2,3*

1 Condensed Matter Theory, Technische Universität Dortmund, Otto-Hahn-Straße 4, 44227 Dortmund, Germany

2 Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

3 Institute for Software Technology, German Aerospace Center (DLR), Linder Höhe, 51147 Cologne, Germany

* Corresponding authors emails: gary.ferkinghoff@tu-dortmund.de, benedikt.fauseweh@dlr.de
DOI10.24435/materialscloud:k8-v6 [version v1]

Publication date: Dec 17, 2021

How to cite this record

Gary Ferkinghoff, Leanna Müller, Umesh Kumar, Götz S. Uhrig, Benedikt Fauseweh, Bound by three-body interactions, Materials Cloud Archive 2021.223 (2021), doi: 10.24435/materialscloud:k8-v6.


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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File name Size Description
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


Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.
Metadata, except for email addresses, are licensed under the Creative Commons Attribution Share-Alike 4.0 International license.

External references

Journal reference (Paper in which the method is described and the data is discussed)
G. Ferkinghoff, L. Müller, U. Kumar, G. S. Uhrig, B. Fauseweh, (submitted)


Spin ladder Triplon Bound State RIXS CUT Theoretical

Version history:

2021.223 (version v1) [This version] Dec 17, 2021 DOI10.24435/materialscloud:k8-v6