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Dynamical Spectral Weight Transfer in the Orbital HK Model

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arxiv 2406.17846 v1 pith:XSY5HAXB submitted 2024-06-25 cond-mat.str-el

Gaurav Tenkila , Jinchao Zhao , Philip W. Phillips This is my paper · ORCID
classification cond-mat.str-el
keywords modelhubbardorbitaldynamicalleswnumberspectralweight
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We compute explicitly the low-energy spectral weight (LESW) in the lower Hubbard band using the orbital Hatsugai-Kohmoto (OHK) model. We show that the dynamical mixing enters the LESW with a universal slope independent of the number of orbitals. This independence on orbital number corroborates the rapid convergence of the OHK model to the Hubbard model. As a result, OHK is an effective simulator of Hubbard physics.

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Cited by 2 Pith papers

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  1. Strong pair-density-wave fluctuations in an exactly solvable doped Mott insulator

    cond-mat.str-el 2024-12 conditional novelty 6.0 of 10

    The Hatsugai-Kohmoto model with pairing interactions shows strong pair-density-wave fluctuations at momentum (π,π) for low doping and intermediate interaction, competing with ordinary superconductivity.

  2. Topic Review: Hatsugai-Kohmoto models: Exactly solvable playground for Mottness and Non-Fermi Liquid

    cond-mat.str-el 2024-12 conditional novelty 1.0 of 10

    A pedagogical review of the exactly solvable Hatsugai-Kohmoto model and its non-Fermi liquid and Mott insulating phases.

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