Zobrazeno 1 - 10
of 216
pro vyhledávání: '"De Giovannini U"'
Autor:
Aeschlimann, S., Sato, S. A., Krause, R., Chávez-Cervantes, M., De Giovannini, U., Hübener, H., Forti, S., Coletti, C., Hanff, K., Rossnagel, K., Rubio, A., Gierz, I.
Floquet theory has spawned many exciting possibilities for electronic structure control with light with enormous potential for future applications. The experimental realization in solids, however, largely remains pending. In particular, the influence
Externí odkaz:
http://arxiv.org/abs/2102.12798
We theoretically investigate basic properties of nonequilibrium steady states of periodically-driven open quantum systems based on the full solution of the Maxwell-Bloch equation. In a resonantly driving condition, we find that the transverse relaxat
Externí odkaz:
http://arxiv.org/abs/1912.03176
Publikováno v:
New J. Phys. 21 093005 (2019)
Employing the quantum Liouville equation with phenomenological dissipation, we investigate the transport properties of massless and massive Dirac fermion systems that mimics graphene and topological insulators, respectively. The massless Dirac fermio
Externí odkaz:
http://arxiv.org/abs/1905.12981
Autor:
Sato, S. A., McIver, J. W., Nuske, M., Tang, P., Jotzu, G., Schulte, B., Hübener, H., De Giovannini, U., Mathey, L., Sentef, M. A., Cavalleri, A., Rubio, A.
Publikováno v:
Phys. Rev. B 99, 214302 (2019)
We employ a quantum Liouville equation with relaxation to model the recently observed anomalous Hall effect in graphene irradiated by an ultrafast pulse of circularly polarized light. In the weak-field regime, we demonstrate that the Hall effect orig
Externí odkaz:
http://arxiv.org/abs/1905.04508
The interaction of heavy charged particles with DNA is of interest for several areas, from hadrontherapy to aero-space industry. In this paper, a TD-DFT study on the interaction of a 4 keV proton with an isolated DNA base pair was carried out. Ehrenf
Externí odkaz:
http://arxiv.org/abs/1905.03575
Publikováno v:
Phys. Rev. A 85, 062515 (2012)
We present a time-dependent density-functional method able to describe the photoelectron spectrum of atoms and molecules when excited by laser pulses. This computationally feasible scheme is based on a geometrical partitioning that efficiently gives
Externí odkaz:
http://arxiv.org/abs/1206.6031
Publikováno v:
New Journal of Physics 11, 123004 (2009)
The transport properties of quantum dots with up to N=7 electrons ranging from the weak to the strong interacting regime are investigated via the projected Hartree-Fock technique. As interactions increase radial order develops in the dot, with the fo
Externí odkaz:
http://arxiv.org/abs/0911.2200
Publikováno v:
Phys. Rev. B 77, 035325 (2008)
We report results for the ground state energies and wave functions obtained by projecting spatially unrestricted Hartree Fock states to eigenstates of the total spin and the angular momentum for harmonic quantum dots with $N\leq 12$ interacting elect
Externí odkaz:
http://arxiv.org/abs/0707.3705
Publikováno v:
New Journal of Physics 9, 93 (2007)
Ground state energies are obtained using the unrestricted Hartree Fock method for up to four interacting electrons parabolically confined in a quantum dot subject to a magnetic field. Restoring spin and rotational symmetries we recover Hund first rul
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703381
Publikováno v:
Science Bulletin
Floquet engineering consists in the modification of physical systems by the application of periodic time-dependent perturbations. The search for the shape of the periodic perturbation that best modifies the properties of a system in order to achieve