25 citations · 59 across the 11 of their papers we have counts for
11 papers
Electronic Green's function across the pseudogap to stripe transition in the -- model
Martin Ulaga, Aritra Sinha, Alexander Wietek
Superconducting domes in strongly correlated electronic systems are often accompanied by charge density waves and peculiar features in the electronic structure. The appearance of a…
Melting upon cooling in a quantum magnet
K. Jaksetič, T. Arh, M. Pregelj +19
Heating enhances thermal fluctuations and typically leads to melting of solids, but in exceptional cases, heating can also cause liquids to solidify. The paradigm of this counterin…
Evolution of superconductivity from charge clusters to stripes in the -- model
Aritra Sinha, Hannes Karlsson, Martin Ulaga +1
Competition and coexistence of charge orders and superconductivity are hallmarks in many strongly correlated electron systems. Here, we unravel the precise role of charge fluctuati…
The anisotropic Heisenberg model close to the Ising limit: triangular lattice vs. effective models
Martin Ulaga, Jure Kokalj, Takami Tohyama +1
Stimulated by recent experiments on materials representing the realization of the anisotropic Heisenberg spin- model on the triangular lattice, we explore further properties o…
XDiag: Exact Diagonalization for Quantum Many-Body Systems
Alexander Wietek, Luke Staszewski, Martin Ulaga +6
Exact diagonalization (ED) is a cornerstone technique in quantum many-body physics, enabling precise solutions to the Schrödinger equation for interacting quantum systems. Despite…
Easy-axis Heisenberg model on the triangular lattice: from supersolid to gapped solid
Martin Ulaga, Jure Kokalj, Takami Tohyama +1
We investigate the easy-axis Heisenberg model on the triangular lattice by numerically studying excitations and the dynamical spin structure factor . Results are…
Thermoelectric effect on diffusion in the two-dimensional Hubbard model
Martin Ulaga, Jernej Mravlje, Jure Kokalj
We study charge and heat transport in the square lattice Hubbard model at strong coupling using the finite-temperature Lanczos method. We construct the diffusion matrix and estimat…
Finite-temperature properties of the easy-axis Heisenberg model on frustrated lattices
Martin Ulaga, Jure Kokalj, Alexander Wietek +2
Motivated by recent experiments on a compound {displaying Ising-like short-range correlations on the triangular lattice, we study the anisotropic easy-axis spin- Heisenberg mo…
Thermal conductivity and heat diffusion in the two-dimensional Hubbard model
Martin Ulaga, Jernej Mravlje, Peter Prelovšek +1
We study the electronic thermal conductivity and the thermal diffusion constant in the square lattice Hubbard model using the finite-temperature L…
Spin Seebeck coefficient and spin-thermal diffusion in the two-dimensional Hubbard model
Jernej Mravlje, Martin Ulaga, Jure Kokalj
We investigate the spin Seebeck coefficient in the square lattice Hubbard model at high temperatures of relevance to cold-atom measurements. We solve the model with the finit…
Spin diffusion and spin conductivity in the 2d Hubbard model
Martin Ulaga, Jernej Mravlje, Jure Kokalj
We study the spin diffusion and spin conductivity in the square lattice Hubbard model by using the finite-temperature Lanczos method. We show that the spin diffusion behaves differ…