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Relation between far-from-equilibrium dynamics and equilibrium correlation functions for binary operators.
It is unveiled that, for high temperatures, the nonequilibrium dynamics of so-called binary operators is always generated by an equilibrium correlation function, and holds true for states in the far-from-equilibrium limit, i.e., initial states far away from equilibrium. Expand
Exponential damping induced by random and realistic perturbations.
This work studies the decay of current autocorrelation functions in spin-1/2 ladder systems and finds a convincing agreement between the exact dynamics and the lowest-order prediction over a wide range of interchain couplings. Expand
Traces of the Gods: Ancient Astronauts as a Vision of Our Future
- Jonas Richter
Abstract Ancient astronaut speculation (also called paleo-SETI), often labeled pseudoscience or modern myth, still awaits in-depth research. Focusing on Erich von Daniken and reconstructing his views… Expand
Real-time dynamics of typical and untypical states in nonintegrable systems
Understanding (i) the emergence of diffusion from truly microscopic principles continues to be a major challenge in experimental and theoretical physics. At the same time, isolated quantum many-body… Expand
Impact of eigenstate thermalization on the route to equilibrium.
If the off-diagonal part of the ETH applies, then the relaxation process can become independent of whether or not a state is close to equilibrium, and the dynamics is generated by a single correlation function in the context of LRT. Expand
Combining dynamical quantum typicality and numerical linked cluster expansions
We demonstrate that numerical linked cluster expansions (NLCE) yield a powerful approach to calculate time-dependent correlation functions for quantum many-body systems in one dimension. As a… Expand
Eigenstate thermalization hypothesis beyond standard indicators: Emergence of random-matrix behavior at small frequencies.
- Jonas Richter, A. Dymarsky, R. Steinigeweg, J. Gemmer
- Physics, Medicine
- Physical review. E
- 29 July 2020
It is demonstrated that at much smaller energy scales, the eigenvalue distribution approximately assumes the universal semicircle shape, indicating transition to the random-matrix behavior, and in particular that matrix elements become uncorrelated. Expand
Magnetization dynamics in clean and disordered spin-1 XXZ chains
We study spin transport in the one-dimensional anisotropic S = 1 Heisenberg model. Particular emphasis is given to dynamics at infinite temperature, where current autocorrelations and spatio-temporal… Expand
Magnetization and energy dynamics in spin ladders : Evidence of diffusion in time, frequency, position, and momentum
The dynamics of magnetization and energy densities are studied in the two-leg spin-1/2 ladder. Using an efficient pure-state approach based on the concept of typicality, we calculate spatiotemporal… Expand
Sudden removal of a static force in a disordered system: Induced dynamics, thermalization, and transport
We study the real-time dynamics of local occupation numbers in a one-dimensional model of spinless fermions with a random on-site potential for a certain class of initial states. The latter are… Expand