Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Karakuzu, Seher"'
Autor:
Tscheppe, Patrick, Zang, Jiawei, Klett, Marcel, Karakuzu, Seher, Celarier, Armelle, Cheng, Zhengqian, Marianetti, Chris A., Maier, Thomas A., Ferrero, Michel, Millis, Andrew J., Schäfer, Thomas
Publikováno v:
Proceedings of the National Academy of Sciences 121, 3 (2024)
The ability to control the properties of twisted bilayer transition metal dichalcogenides in situ makes them an ideal platform for investigating the interplay of strong correlations and geometric frustration. Of particular interest are the low energy
Externí odkaz:
http://arxiv.org/abs/2303.13578
Autor:
Karakuzu, Seher, Cohen-Stead, Benjamin, Batista, Cristian D., Johnston, Steven, Barros, Kipton
Publikováno v:
Phys. Rev. E 107, 055301 (2023)
We consider a class of Hubbard-Stratonovich transformations suitable for treating Hubbard interactions in the context of quantum Monte Carlo simulations. A tunable parameter $p$ allows us to continuously vary from a discrete Ising auxiliary field ($p
Externí odkaz:
http://arxiv.org/abs/2211.05074
Autor:
Mai, Peizhi, Nichols, Nathan S., Karakuzu, Seher, Bao, Feng, Del Maestro, Adrian, Maier, Thomas A., Johnston, Steven
There is growing evidence that the hole-doped single-band Hubbard and $t$-$J$ models do not have a superconducting ground state reflective of the high-temperature cuprate superconductors but instead have striped spin- and charge-ordered ground states
Externí odkaz:
http://arxiv.org/abs/2210.14930
Autor:
Karakuzu, Seher, Ly, Andy Tanjaroon, Mai, Peizhi, Neuhaus, James, Maier, Thomas A., Johnston, Steven
Publikováno v:
Communications Physics 5, 311 (2022)
Several state-of-the-art numerical methods have observed static or fluctuating spin and charge stripes in doped two-dimensional Hubbard models, suggesting that these orders play a significant role in shaping the cuprate phase diagram. Many experiment
Externí odkaz:
http://arxiv.org/abs/2205.15464
Fully occupied or unoccupied bands in a solid are often considered inert and irrelevant to a material's low-energy properties. But the discovery of enhanced superconductivity in heavily electron-doped FeSe-derived superconductors poses questions abou
Externí odkaz:
http://arxiv.org/abs/2107.13996
The high-temperature superconducting cuprates are governed by intertwined striped magnetic and charge orders in addition to superconductivity. Remarkably similar behavior has also been seen in numerical calculations for the Hubbard model describing t
Externí odkaz:
http://arxiv.org/abs/2106.01944
Publikováno v:
Phys. Rev. Research 2, 033132 (2020)
Studying the disappearance of superconductivity at the end of the overdoped region of the cuprate phase diagram offers a different approach for investigating the interaction which is responsible for pairing in these materials. In the underdoped regio
Externí odkaz:
http://arxiv.org/abs/2004.13120
Publikováno v:
Phys. Rev. B 98, 201108 (2018)
We show that, by an appropriate choice of auxiliary fields and exact integration of the phonon degrees of freedom, it is possible to define a 'sign-free' path integral for the so called Hubbard-Holstein model at half-filling. We use a statistical met
Externí odkaz:
http://arxiv.org/abs/1808.07759
Publikováno v:
Phys. Rev. B 98, 075156 (2018)
By using variational Monte Carlo and auxiliary-field quantum Monte Carlo methods, we perform an accurate finite-size scaling of the $s$-wave superconducting order parameter and the pairing correlations for the negative-$U$ Hubbard model at zero tempe
Externí odkaz:
http://arxiv.org/abs/1806.06736
Publikováno v:
Phys. Rev. B 96, 205145 (2017)
By using variational wave functions and quantum Monte Carlo techniques, we investigate the interplay between electron-electron and electron-phonon interactions in the two-dimensional Hubbard-Holstein model. Here, the ground-state phase diagram is tri
Externí odkaz:
http://arxiv.org/abs/1709.00278