Zobrazeno 1 - 10
of 513
pro vyhledávání: '"Reimann, Peter"'
Autor:
Dabelow, Lennart, Reimann, Peter
Changing some of its parameters over time is a paradigmatic way of driving an otherwise isolated many-body quantum system out of equilibrium, and a vital ingredient for building quantum computers and simulators. Here, we further develop a recently pr
Externí odkaz:
http://arxiv.org/abs/2409.10052
Publikováno v:
Phys. Rev. B 110, 014306 (2024)
Onsager's regression hypothesis connects the temporal relaxation of close-to-equilibrium systems with their dynamical correlation functions at thermal equilibrium. While the hypothesis is provably correct in classical systems, it is known to fail in
Externí odkaz:
http://arxiv.org/abs/2407.11711
Autor:
Dabelow, Lennart, Reimann, Peter
Publikováno v:
Nat. Commun. 15, 294 (2024)
The question of how systems respond to perturbations is ubiquitous in physics. Predicting this response for large classes of systems becomes particularly challenging if many degrees of freedom are involved and linear response theory cannot be applied
Externí odkaz:
http://arxiv.org/abs/2401.04645
Publikováno v:
Phys. Rev. B 108, 054407 (2023)
Allosterism traditionally refers to local changes in an extended object, for instance the binding of a ligand to a macromolecule, leading to a localized response at some other, possibly quite remote position. Here, we show that such fascinating effec
Externí odkaz:
http://arxiv.org/abs/2308.05599
Publikováno v:
Phys. Rev. B 105, 024310 (2022)
Deriving conditions under which a macroscopic system thermalizes directly from the underlying quantum many-body dynamics of its microscopic constituents is a long-standing challenge in theoretical physics. The well-known eigenstate thermalization hyp
Externí odkaz:
http://arxiv.org/abs/2202.00271
Publikováno v:
Diffusion fundamentals 20 (2013) 6, S.
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A13527
https://ul.qucosa.de/api/qucosa%3A13527/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A13527/attachment/ATT-0/
Autor:
Reimann, Peter
Publikováno v:
J. Stat. Mech. 103106 (2021)
The observable long-time behavior of an isolated many-body system after a quantum quench is considered, i.e., an eigenstate (or an equilibrium ensemble) of some pre-quench Hamiltonian $H$ serves as initial condition which then evolves in time accordi
Externí odkaz:
http://arxiv.org/abs/2111.01599
Autor:
Reimann, Peter, Dabelow, Lennart
Publikováno v:
Phys. Rev. E 103, 022119 (2021)
The ground breaking investigation by Deutsch [Phys. Rev. A 43, 2046 (1991)] of how closed many-body quantum systems approach thermal equilibrium is revisited. It is shown how to carry out some important steps which were still missing in that paper. M
Externí odkaz:
http://arxiv.org/abs/2102.06057
Autor:
Dabelow, Lennart, Reimann, Peter
Publikováno v:
J. Stat. Mech. 2021, 013106 (2021)
We substantially extend our relaxation theory for perturbed many-body quantum systems from [Phys. Rev. Lett. 124, 120602 (2020)] by establishing an analytical prediction for the time-dependent observable expectation values which depends on only two c
Externí odkaz:
http://arxiv.org/abs/2101.03345
Autor:
Shoshi, Arber, Xia, Yuchen, Fieschi, Andrea, Ackermann, Thomas, Reimann, Peter, Weyrich, Michael, Mitschang, Bernhard, Bauernhansl, Thomas, Miehe, Robert
Publikováno v:
In Procedia CIRP 2024 125:124-129