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Showing 1–10 of 10 results
Advanced filters: Author: A. Bohrdt Clear advanced filters

  • A doped quantum antiferromagnet is obtained by using a Rydberg tweezer array comprising three levels encoding spins and holes to implement a tunable model that allows the study of previously inaccessible parameter regimes.

    • Mu Qiao
    • Gabriel Emperauger
    • Antoine Browaeys
    Research
    Nature
    Volume: 644, P: 889-895

  • Observations of the formation of individual stripes in a mixed-dimensional cold-atom Fermi–Hubbard quantum simulator are described, enhancing understanding of the phase diagram of high-temperature superconducting materials and the relationship between charge pairs and stripes.

    • Dominik Bourgund
    • Thomas Chalopin
    • Timon A. Hilker
    ResearchOpen Access
    Nature
    Volume: 637, P: 57-62

  • Quantum gas microscopes provide high-resolution real-space snapshots of quantum many-body systems. Now machine-learning techniques are used in choosing theoretical descriptions according to the consistency of their predictions with these snapshots.

    • Annabelle Bohrdt
    • Christie S. Chiu
    • Michael Knap
    Research
    Nature Physics
    Volume: 15, P: 921-924

  • The microscopic mechanism of superconducting pairing in hole-doped cuprates is still debated. Here, using state-of-the-art numerical techniques, the authors examine the properties of pairs of holes in a model relevant to cuprates revealing two types of bound states involving light and heavy hole pairs.

    • A. Bohrdt
    • E. Demler
    • F. Grusdt
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • The direct observation of hole pairing in a doped Hubbard model is demonstrated using ultracold atoms in a quantum gas microscope setting by engineering mixed-dimensional fermionic ladders.

    • Sarah Hirthe
    • Thomas Chalopin
    • Timon A. Hilker
    ResearchOpen Access
    Nature
    Volume: 613, P: 463-467

  • Studies of unconventional pairing mechanisms in cold atoms require ultralow temperatures. Large-scale numerics show that certain bilayer models allow for deeply bound and highly mobile pairs of charges at more accessible temperatures.

    • Annabelle Bohrdt
    • Lukas Homeier
    • Fabian Grusdt
    ResearchOpen Access
    Nature Physics
    Volume: 18, P: 651-656

  • Physical principles underlying machine learning analysis of quantum gas microscopy data are not well understood. Here the authors develop a neural network based approach to classify image data in terms of multi-site correlation functions and reveal the role of fourth-order correlations in the Fermi-Hubbard model.

    • Cole Miles
    • Annabelle Bohrdt
    • Eun-Ah Kim
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • The realization of dipolar quantum solids with an ultracold gas of magnetic atoms in an optical lattice ushers in quantum simulation of many-body systems with long-range anisotropic interactions.

    • Lin Su
    • Alexander Douglas
    • Markus Greiner
    Research
    Nature
    Volume: 622, P: 724-729

  • The interplay of kinetic and spin degrees of freedom in strongly correlated materials leads to interesting emergent many-body phases, but their microscopic origin is still unclear. Here, a theoretical study quantifies the effect of hole motion in driving an antiferromagnetic spin background into a highly frustrated magnetic system.

    • Henning Schlömer
    • Timon A. Hilker
    • Annabelle Bohrdt
    ResearchOpen Access
    Communications Materials
    Volume: 4, P: 1-8

  • Quantum gas microscopy is an in-situ imaging technique used to investigate many-body phenomena in cold-atom quantum simulators and can provide resolution at the single-particle level; however, limiting factors, such as short lattice constants and finite signal-to-noise ratios, weaken image resolution. Here, the authors develop an algorithm based on unsupervised deep learning that can reconstruct the occupation of an optical lattice of Cs atoms from fluorescence images with high fidelity.

    • Alexander Impertro
    • Julian F. Wienand
    • Monika Aidelsburger
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-8