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  1. Fragmented superconductivity in the Hubbard model as solitons in Ginzburg-Landau theory

    Publication
    The phenomena of superconductivity and charge density waves are observed in close vicinity in many strongly correlated materials. Increasing evidence from experiments and numerical simulations suggests both phenomena …

  2. Disentangling Interacting Systems with Fermionic Gaussian Circuits: Application to the Single Impurity Anderson Model

    Publication
    Tensor network quantum states are powerful tools for strongly correlated systems, tailored to capture local correlations such as in ground states with entanglement area laws. When applying tensor …

  3. Approximate Contraction of Arbitrary Tensor Networks with a Flexible and Efficient Density Matrix Algorithm

    Publication
    Tensor network contractions are widely used in statistical physics, quantum computing, and computer science. We introduce a method to efficiently approximate tensor network contractions using low-rank approximations …

  4. Efficient tensor network simulation of IBM's Eagle kicked Ising experiment

    Publication
    We report an accurate and efficient classical simulation of a kicked Ising quantum system on the heavy hexagon lattice. A simulation of this system was recently performed on …

  5. Efficient Tensor Network Simulation of IBM’s Eagle Kicked Ising Experiment

    Publication

  6. Equilibrium quantum impurity problems via matrix product state encoding of the retarded action

    Publication
    In the 0 + 1 -dimensional imaginary-time path integral formulation of quantum impurity problems, the retarded action encodes the hybridization of the impurity with the bath. In this …

  7. Extracting Off-Diagonal Order from Diagonal Basis Measurements

    Publication

  8. The Hubbard model on the Bethe lattice via variational uniform tree states: metal-insulator transition and a Fermi liquid

    Publication
    We numerically solve the Hubbard model on the Bethe lattice with finite coordination number z=3, and determine its zero-temperature phase diagram. For this purpose, we introduce …

  9. Wavefunction positivization via automatic differentiation

    Publication
    We introduce a procedure to systematically search for a local unitary transformation that maps a wave function with a nontrivial sign structure into a positive-real form. The …