Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Donsa, Stefan"'
We study dynamical (quasi)-condensation in the Fermi-Hubbard model starting from a completely uncorrelated initial state of adjacent doubly occupied sites. We show that upon expansion of the system in one dimension, dynamical (quasi)-condensation occ
Externí odkaz:
http://arxiv.org/abs/2402.16604
Autor:
Donsa, Stefan, Lackner, Fabian, Burgdörfer, Joachim, Bonitz, Michael, Kloss, Benedikt, Rubio, Angel, Březinová, Iva
Publikováno v:
Phys. Rev. Research 5, 033022 (2023)
We explore the non-equilibrium dynamics of a one-dimensional Fermi-Hubbard system as a sensitive testbed for the capabilities of the time-dependent two-particle reduced density matrix (TD2RDM) theory to accurately describe time-dependent correlated s
Externí odkaz:
http://arxiv.org/abs/2303.04576
Time-resolved electronic processes on the attosecond scale have recently become experimentally accessible through the development of laser-based pump-probe interrogation techniques such as the attosecond streak camera, the reconstruction of attosecon
Externí odkaz:
http://arxiv.org/abs/2206.00581
Publikováno v:
Entropy 2022, 24(12), 1740
One key issue of the foundation of statistical mechanics is the emergence of equilibrium ensembles in isolated and closed quantum systems. Recently, it was predicted that in the thermodynamic ($N\rightarrow\infty$) limit of large quantum many-body sy
Externí odkaz:
http://arxiv.org/abs/2103.05974
Autor:
Fuchs, Jaco, Douguet, Nicolas, Donsa, Stefan, Martin, Fernando, Burgdörfer, Joachim, Argenti, Luca, Cattaneo, Laura, Keller, Ursula
Publikováno v:
Phys. Rev. Research 3, 013195 (2021)
Realistic attosecond wave packets have complex profiles that, in dispersive conditions, rapidly broaden or split into multiple components. Such behaviors are encoded in sharp features of the wave packet spectral phase. Here, we exploit the quantum be
Externí odkaz:
http://arxiv.org/abs/2012.07426
Autor:
Wanzenböck, Ralf, Donsa, Stefan, Hofstätter, Harald, Koch, Othmar, Schlagheck, Peter, Březinová, Iva
Publikováno v:
Phys. Rev. A 103, 023336 (2021)
The mean-field limit of a bosonic quantum many-body system is described by (mostly) non-linear equations of motion which may exhibit chaos very much in the spirit of classical particle chaos, i.e. by an exponential separation of trajectories in Hilbe
Externí odkaz:
http://arxiv.org/abs/2007.07662
Publikováno v:
Phys. Rev. A 102, 033112 (2020)
Recent angle-resolved RABBITT experiments have shown that the photoionization time delay depends on the emission angle of the photoelectron. In this work we demonstrate that for photoemission from helium accompanied by shake-up (correlation satellite
Externí odkaz:
http://arxiv.org/abs/2005.12654
Autor:
Ni, Hongcheng, Brennecke, Simon, Gao, Xiang, He, Pei-Lun, Donsa, Stefan, Březinová, Iva, He, Feng, Wu, Jian, Lein, Manfred, Tong, Xiao-Ming, Burgdörfer, Joachim
Publikováno v:
Phys. Rev. Lett. 125, 073202 (2020)
Interaction of a strong laser pulse with matter transfers not only energy but also linear momentum of the photons. Recent experimental advances have made it possible to detect the small amount of linear momentum delivered to the photoelectrons in str
Externí odkaz:
http://arxiv.org/abs/2004.08922
Autor:
Fuchs, Jaco, Douguet, Nicolas, Donsa, Stefan, Martin, Fernando, Burgdörfer, Joachim, Argenti, Luca, Cattaneo, Laura, Keller, Ursula
Attosecond photoionisation time delays reveal information about the potential energy landscape an outgoing electron wavepacket probes upon ionisation. In this study we experimentally quantify, for the first time, the dependence of the time delay on t
Externí odkaz:
http://arxiv.org/abs/1907.03607
Publikováno v:
Phys. Rev. Lett. 123, 133203 (2019)
We propose an attosecond XUV-pump IR-probe photoionization protocol that employs pairs of counter-rotating consecutive harmonics and angularly resolved photoelectron detection, thereby providing direct measurement of ionization phases. The present me
Externí odkaz:
http://arxiv.org/abs/1904.04380