Magnon interactions in a moderately correlated Mott insulator
Quantum fluctuations in low-dimensional systems and near quantum phase transitions have
significant influences on material properties. Yet, it is difficult to experimentally gauge the …
significant influences on material properties. Yet, it is difficult to experimentally gauge the …
Spiral to stripe transition in the two-dimensional Hubbard model
We obtain an almost complete understanding of the mean-field phase diagram of the two-
dimensional Hubbard model on a square lattice with a sizable next-nearest-neighbor …
dimensional Hubbard model on a square lattice with a sizable next-nearest-neighbor …
CDMFT+ HFD: An extension of dynamical mean field theory for nonlocal interactions applied to the single band extended Hubbard model
S Kundu, D Sénéchal - SciPost Physics Core, 2024 - scipost.org
We examine the phase diagram of the extended Hubbard model on a square lattice, for both
attractive and repulsive nearest-neighbor interactions, using CDMFT+ HFD, a combination …
attractive and repulsive nearest-neighbor interactions, using CDMFT+ HFD, a combination …
Magnetic phase diagram of the three-dimensional doped Hubbard model
L Rampon, F Šimkovic IV, M Ferrero - arXiv preprint arXiv:2409.08848, 2024 - arxiv.org
We establish the phase diagram of the Hubbard model on a cubic lattice for a wide range of
temperatures, dopings and interaction strengths, considering both commensurate and …
temperatures, dopings and interaction strengths, considering both commensurate and …
Variational Monte Carlo study of stripes as a function of doping in the Hubbard model
A Lechiara, V Marino, LF Tocchio - arXiv preprint arXiv:2403.02073, 2024 - arxiv.org
We perform variational Monte Carlo simulations of the single-band Hubbard model on the
square lattice with both nearest ($ t $) and next-nearest ($ t'$) neighbor hoppings. Our work …
square lattice with both nearest ($ t $) and next-nearest ($ t'$) neighbor hoppings. Our work …
Magnetic quantum criticality: dynamical mean-field perspective
S Adler, DR Fus, MO Malcolms, A Vock, K Held… - arXiv preprint arXiv …, 2024 - arxiv.org
We investigate the magnetic quantum phase-transitions in bulk correlated metals at the level
of dynamical mean-field theory. To this end, we focus on the Hubbard model on a simple …
of dynamical mean-field theory. To this end, we focus on the Hubbard model on a simple …
Thermopower across Fermi-volume-changing quantum phase transitions without symmetry breaking
We describe the evolution of low-temperature thermopower across Fermi-volume-changing
quantum phase transitions in Kondo lattice models without symmetry breaking. This …
quantum phase transitions in Kondo lattice models without symmetry breaking. This …
Mean-field analysis of a Hubbard interaction on Bernal Bilayer Graphene
We perform unrestricted Hartree-Fock calculations on the 2D Hubbard model on a
honeycomb and bilayer honeycomb lattice at both zero and finite temperatures. Finite size …
honeycomb and bilayer honeycomb lattice at both zero and finite temperatures. Finite size …
Unified Investigation of Rapid Hall Coefficient Changes in Cuprates: Pseudogap and Fermi Surface Influences
Y Su, H Li, H Huang, D Li - arXiv preprint arXiv:2409.00929, 2024 - arxiv.org
High-$ T_c $ cuprates are characterized by strong spin fluctuations, which give rise to
antiferromagnetic and pseudogap phases and may be key to the high superconducting …
antiferromagnetic and pseudogap phases and may be key to the high superconducting …
Charge density wave solutions of the Hubbard model in the composite operator formalism
We investigate the charge density wave phase in the strongly correlated Hubbard model
without any other broken symmetry phase. Starting from the atomic Hamiltonian with no …
without any other broken symmetry phase. Starting from the atomic Hamiltonian with no …