Zobrazeno 1 - 10
of 866
pro vyhledávání: '"A. Wietek"'
Autor:
Sinha, Aritra, Wietek, Alexander
Stripe order is a prominent feature in the phase diagram of the high-temperature cuprate superconductors and has been confirmed as the ground state of the two-dimensional Fermi Hubbard model in certain parameter regimes. Upon increasing the temperatu
Externí odkaz:
http://arxiv.org/abs/2411.15158
Autor:
Staszewski, Luke, Wietek, Alexander
We investigate the fundamental dynamical process of an initial quench of the chemical potential of the two-dimensional $t$-$J$ model. Depending on the ground state phase, sharply different dynamical behavior of the charge distribution and entanglemen
Externí odkaz:
http://arxiv.org/abs/2410.16387
Autor:
Haldar, Asmi, Das, Anirban, Chaudhuri, Sagnik, Staszewski, Luke, Wietek, Alexander, Pollmann, Frank, Moessner, Roderich, Das, Arnab
The ergodicity postulate, a foundational pillar of Gibbsian statistical mechanics predicts that a periodically driven (Floquet) system in the absence of any conservation law heats to a featureless `infinite temperature' state. Here, we find--for a cl
Externí odkaz:
http://arxiv.org/abs/2410.11050
Autor:
Jasiński, Jakub, Hagel, Joakim, Brem, Samuel, Wietek, Edith, Taniguchi, Takashi, Watanabe, Kenji, Chernikov, Alexey, Bruyant, Nicolas, Dyksik, Mateusz, Surrente, Alessandro, Baranowski, Michał, Maude, Duncan K., Malic, Ermin, Płochocka, Paulina
The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterostructures. Among the unconventional excitonic states, quadrupolar excit
Externí odkaz:
http://arxiv.org/abs/2407.18040
Tensor network states have enjoyed great success at capturing aspects of strong correlation physics. However, obtaining dynamical correlators at non-zero temperatures is generically hard even using these methods. Here, we introduce a practical approa
Externí odkaz:
http://arxiv.org/abs/2405.18484
The quantum magnet SrCu$_2($BO$_3)_2$ and its remarkably accurate theoretical description, the spin-$1/2$ Shastry-Sutherland model, host a variety of intriguing phenomena such as a dimer ground state with a nearly flat band of triplon excitations, a
Externí odkaz:
http://arxiv.org/abs/2405.18475
Autor:
Steinhoff, Alexander, Wietek, Edith, Florian, Matthias, Schulz, Tommy, Taniguchi, Takashi, Watanabe, Kenji, Zhao, Shen, Högele, Alexander, Jahnke, Frank, Chernikov, Alexey
Publikováno v:
Phys. Rev. X 14, 031025 (2024)
Exciton-exciton interactions are key to understanding non-linear optical and transport phenomena in van der Waals heterobilayers, which emerged as versatile platforms to study correlated electronic states. We present a combined theory-experiment stud
Externí odkaz:
http://arxiv.org/abs/2310.18328
Publikováno v:
Condensed Matter Physics, Vol 23, Iss 4, p 43712 (2021)
The high-field regime of the spin-s XXZ antiferromagnet on the kagome lattice gives rise to macroscopically degenerate ground states thanks to a completely flat lowest single-magnon band. The corresponding excitations can be localized on loops in rea
Externí odkaz:
https://doaj.org/article/7d4ad063b96849a79ce53486aa38b95a
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 can also occur in an intertwined
Externí odkaz:
http://arxiv.org/abs/2307.11820
Motivated by recent experiments on a compound {displaying Ising-like short-range correlations on the triangular lattice, we study the anisotropic easy-axis spin-$1/2$ Heisenberg model on the triangular and kagome lattice} by performing numerical calc
Externí odkaz:
http://arxiv.org/abs/2307.03545