Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Philip Bleicker"'
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043168 (2021)
A dynamic mean-field theory for spin ensembles (spinDMFT) at infinite temperatures on arbitrary lattices is established. The approach is introduced for an isotropic Heisenberg model with S=1/2 and external field. For large coordination numbers, it is
Externí odkaz:
https://doaj.org/article/2ca2b977267e47b591f1d6a17935bbf9
With the aid of both a semi-analytical and a numerically exact method we investigate the charge dynamics in the vicinity of half-filling in the one- and two-dimensional $t$-$J$ model derived from a Fermi-Hubbard model in the limit of large interactio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c43a77aa12b4c679d80b3689b718ada
http://arxiv.org/abs/2104.10158
http://arxiv.org/abs/2104.10158
Publikováno v:
Physical Review A. 102
Using numerically exact methods we examine the Fermi-Hubbard model on arbitrary cluster topology. We focus on the question which systems eventually equilibrate or even thermalize after an interaction quench when initially prepared in a state highly e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c84573c0a1da7b84842fefa23db9259b
https://doi.org/10.1103/physreva.102.013321
https://doi.org/10.1103/physreva.102.013321
Autor:
Götz S. Uhrig, Philip Bleicker
Publikováno v:
Physical Review A. 98
The one-dimensional Fermi-Hubbard model is used as testbed for strong global parameter quenches. With the aid of iterated equations of motion in combination with a suitable scalar product for operators we describe the dynamics and the long-term behav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4aaa23d53691b298242956eff62165d9
https://doi.org/10.1103/physreva.98.033602
https://doi.org/10.1103/physreva.98.033602
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2016, 94 (9), ⟨10.1103/PhysRevB.94.094308⟩
Physical Review B, American Physical Society, 2016, 94 (9), ⟨10.1103/PhysRevB.94.094308⟩
The decohering environment of a quantum bit is often described by the coupling to a large bath of spins. The quantum bit itself can be seen as a spin $S=1/2$ which is commonly called the central spin. The resulting central spin model describes an imp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27f2959f22dff83209f18edca1e1fde1
https://hal.archives-ouvertes.fr/hal-03232301
https://hal.archives-ouvertes.fr/hal-03232301