Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Tancogne-Dejean Nicolas"'
A beyond electric-dipole light-matter theory is needed to describe emerging X-ray and THz applications for characterization and control of quantum materials but inaccessible as nondipole lattice-aperiodic terms impede on the use of Bloch's theorem. T
Externí odkaz:
http://arxiv.org/abs/2410.18547
Nonlinear photomagnetization is a process by which an oscillating electric field can induce a static magnetization. We show that all 32 crystallographic point groups admit spin polarization to second order using circularly polarized electric fields (
Externí odkaz:
http://arxiv.org/abs/2406.14748
Autor:
Xu, Qiaoling, Tancogne-Dejean, Nicolas, Boström, Emil Viñas, Kennes, Dante M., Claassen, Martin, Rubio, Angel, Xian, Lede
Due to the large-period superlattices emerging in moir\'e two-dimensional (2D) materials, electronic states in such systems exhibit low energy flat bands that can be used to simulate strongly correlated physics in a highly tunable setup. While many i
Externí odkaz:
http://arxiv.org/abs/2406.05626
Autor:
Lu, I-Te, Ruggenthaler, Michael, Tancogne-Dejean, Nicolas, Latini, Simone, Penz, Markus, Rubio, Angel
Quantum-electrodynamical density-functional theory (QEDFT) provides a promising avenue for exploring complex light-matter interactions in optical cavities for real materials. Similar to conventional density-functional theory, the Kohn-Sham formulatio
Externí odkaz:
http://arxiv.org/abs/2402.09794
Autor:
Laestadius, Andre, Csirik, Mihály A., Penz, Markus, Tancogne-Dejean, Nicolas, Ruggenthaler, Michael, Rubio, Angel, Helgaker, Trygve
Publikováno v:
J. Chem. Phys. 160, 084115 (2024)
The exchange-only virial relation due to Levy and Perdew is revisited. Invoking the adiabatic connection, we introduce the exchange energy in terms of the right-derivative of the universal density functional w.r.t. the coupling strength $\lambda$ at
Externí odkaz:
http://arxiv.org/abs/2310.19144
We extend some of the well established self-interaction correction (SIC) schemes of density-functional theory to the case of systems with noncollinear magnetism. Our proposed SIC schemes are tested on a set of molecules and metallic clusters in combi
Externí odkaz:
http://arxiv.org/abs/2310.18321
Publikováno v:
Phys. Rev. A 109, 063104 (2024)
We explore the nonlinear response of ultrafast strong-field driven excitons in a one-dimensional solid with ab initio simulations. We demonstrate from our simulations and analytical model that a finite population of excitons imprints unique signature
Externí odkaz:
http://arxiv.org/abs/2307.14693
Autor:
Klemke Nicolai, Tancogne-Dejean Nicolas, Rossi Giulio M., Yang Yudong, Mainz Roland E., Di Sciacca Giuseppe, Rubio Angel, Kärtner Franz X., Mücke Oliver D.
Publikováno v:
EPJ Web of Conferences, Vol 205, p 02022 (2019)
The polarization states of high-harmonics generated in silicon with elliptical excitation are studies. Circularly polarized harmonics are demonstrated with both circular and non-circular excitation, determined by crystal symmetry and the dynamical re
Externí odkaz:
https://doaj.org/article/c5161d96139a4a5a873ce468b031dcb9
Autor:
Neufeld, Ofer, Tancogne-Dejean, Nicolas, Hübener, Hannes, De Giovannini, Umberto, Rubio, Angel
High harmonic generation (HHG) has developed in recent years as a promising tool for ultrafast materials spectroscopy. At the forefront of these advancements, several works proposed to use HHG as an all-optical probe for topology of quantum matter by
Externí odkaz:
http://arxiv.org/abs/2303.17300
Many important ultrafast phenomena take place in the liquid phase. However, there is no practical theory to predict how liquids respond to intense light. Here, we propose an $ab~initio$ accurate method to study the non-perturbative interaction of int
Externí odkaz:
http://arxiv.org/abs/2212.04177