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  1. Competition of fermion pairing, magnetism, and charge order in the spin-doped attractive Hubbard gas

    Publication
    The tension between fermion pairing and magnetism affects numerous strongly correlated electron systems, from high-temperature cuprates to twisted bilayer graphene. Exotic forms of fermion pairing and superfluidity …

  2. In search of exotic pairing in the Hubbard model: many-body computation and quantum gas microscopy

    Publication
    Pair density waves and exotic superconductivity have long been of strong interest, and have attracted much recent attention. We present a joint theoretical and experimental exploration of possible …

  3. Observing Spatial Charge and Spin Correlations in a Strongly-Interacting Fermi Gas

    Publication
    In this work, we explore two-dimensional attractive Fermi gases at the microscopic level by probing spatial charge and spin correlations in situ. Using atom-resolved continuum quantum …

  4. Temperature Dependence of Spin and Charge Orders in the Doped Two-Dimensional Hubbard Model

    Publication

  5. Tracking the Footprints of Spin Fluctuations: A Multi-Method, Multi-Messenger Study of the Two-Dimensional Hubbard Model

    Publication
    The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling as testing grounds …

  6. Precision Many-Body Study of the Berezinskii-Kosterlitz-Thouless Transition and Temperature-Dependent Properties in the Two-Dimensional Fermi Gas

    Publication

  7. Stripes, Antiferromagnetism, and the Pseudogap in the Doped Hubbard Model at Finite Temperature

    Publication
    The interplay between thermal and quantum fluctuations controls the competition between phases of matter in strongly correlated electron systems. We study finite-temperature properties of the strongly coupled …

  8. Quantitative functional renormalization-group description of the two-dimensional Hubbard model

    Publication
    Using a forefront algorithmic implementation of the functional renormalization group (fRG) for interacting fermions on two-dimensional lattices, we provide a detailed analysis of its quantitative reliability for …

  9. Combined spontaneous symmetry-breaking and symmetry-protected topological order from cluster charge interaction

    Publication
    The study of symmetry-protected topological states in presence of electron correlations has recently aroused great interest as rich and exotic phenomena can emerge. Here, we report a …

  10. Reaching the continuum limit in finite-temperature ab initio field-theory computations in many-fermion systems

    Publication
    Finite-temperature, grand-canonical computations based on field theory are widely applied in areas including condensed matter physics, ultracold atomic gas systems, and lattice gauge theory. However, these …

  11. Finite-temperature auxiliary-field quantum Monte Carlo: Self-consistent constraint and systematic approach to low temperatures

    Publication
    We describe an approach for many-body calculations with a finite-temperature, grand canonical ensemble formalism using auxiliary-field quantum Monte Carlo (AFQMC) with a self-consistent constraint …