# Multiplicity, localization, and domains in the Hartree–Fock ground state of the two-dimensional Hubbard model

@article{Matsuyama2022MultiplicityLA, title={Multiplicity, localization, and domains in the Hartree–Fock ground state of the two-dimensional Hubbard model}, author={Kazue Matsuyama and Jeff Greensite}, journal={Annals of Physics}, year={2022} }

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SHOWING 1-10 OF 31 REFERENCES

Spin- and charge-density waves in the Hartree–Fock ground state of the two-dimensional Hubbard model

- PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2011

The UHF solution provides a good description of the magnetic correlations in the true ground state of the Hubbard model for intermediate interactions, and a simple pairing model is presented with analytic calculations for low interaction strength and small doping.

Generalized Hartree-Fock theory and the Hubbard model

- Physics
- 1993

The familiar unrestricted Hartree-Fock variational principles is generalized to include quasi-free states. As we show, these are in one-to-one correspondence with the one-particle density matrices…

Hartree-Fock study of the magnetism in the single-band Hubbard model.

- PhysicsPhysical review. B, Condensed matter
- 1991

We study the magnetic phases of the single-band Hubbard model within the self-consistent Hartree-Fock formalism applied to a large supercell. We find that incommensurate spin-density waves gradually…

Phase diagram of the two-dimensional disordered Hubbard model in the Hartree-Fock approximation.

- Physics, Materials SciencePhysical review. B, Condensed matter
- 1993

Ground-state properties of the two-dimensional Hubbard model with point-defect disorder are investigated numerically in the Hartree-Fock approximation and the presence of U strongly enhances the localization in the antiferromagnetic phase.

Multireference symmetry-projected variational approaches for ground and excited states of the one-dimensional Hubbard model

- Physics
- 2013

We present a multi-reference configuration mixing scheme for describing ground and excited states, with well defined spin and space group symmetry quantum numbers, of the one-dimensional Hubbard…

Two-dimensional Hubbard model: Numerical simulation study.

- PhysicsPhysical review. B, Condensed matter
- 1985

The two-dimensional Hubbard model on a square lattice with nearest-neighbor hopping is studied and it is suggested that the system is always paramagnetic, in contradiction with Hartree-Fock predictions.

Holes and magnetic textures in the two-dimensional Hubbard model.

- PhysicsPhysical review. B, Condensed matter
- 1991

The Hubbard model in a two-dimensional square lattice is studied within the unrestricted Hartree-Fock approximation. It is shown that a large number of self-consistent solutions exist, which…

Solutions of the Two-Dimensional Hubbard Model: Benchmarks and Results from a Wide Range of Numerical Algorithms

- Physics
- 2015

Numerical results for ground-state and excited-state properties (energies, double occupancies, and Matsubara-axis self-energies) of the single-orbital Hubbard model on a two-dimensional square…

Spin Density Wave States in Two Dimensional Hubbard Model

- Physics
- 1992

For a wide range of electron filling we study the spin density wave states in the Hubbard model on a square lattice within a Hartree-Fock approximation. It is shown that the incommensurate helical…

Quantum Monte Carlo study of the two-dimensional fermion Hubbard model

- Physics
- 2009

We report large scale determinant quantum Monte Carlo calculations of the effective bandwidth, momentum distribution, and magnetic correlations of the square lattice fermion Hubbard Hamiltonian at…