425 citations · 2.6k across the 78 of their papers we have counts for
78 papers
Random matrix theory universality of current operators in spin- Heisenberg chains
Mariel Kempa, Markus Kraft, Robin Steinigeweg +2
Quantum chaotic systems exhibit certain universal statistical properties that closely resemble predictions from random matrix theory (RMT). With respect to observables, it has rece…
Fate of diffusion under integrability breaking of classical integrable magnets
Jiaozi Wang, Sourav Nandy, Markus Kraft +2
Diffusive transport is a ubiquitous phenomenon, yet the microscopic origin of diffusion in interacting physical systems remains a challenging question, irrespective of whether quan…
Quantum typicality approach to energy flow between two spin-chain domains at different temperatures
Laurenz Beckemeyer, Markus Kraft, Mariel Kempa +2
We discuss a quantum typicality approach to examine systems composed of two subsystems at different temperatures. While dynamical quantum typicality is usually used to simulate hig…
Boundary-driven magnetization transport in the spin- XXZ chain: Role of the system-bath coupling strength and timescales
Mariel Kempa, Markus Kraft, Sourav Nandy +4
Understanding the transport properties of quantum many-body systems is a central challenge in condensed matter and statistical physics. Theoretical studies usually rely on two main…
Eigenstate Thermalization Hypothesis and Random Matrix Theory Universality in Few-Body Systems
Jiaozi Wang, Hua Yan, Robin Steinigeweg +1
In this paper, we study the Feingold-Peres model as an example, which is a well-known paradigm of quantum chaos. Using semiclassical analysis and numerical simulations, we study th…
Scrutinizing the Mori memory function for diffusion in periodic quantum systems
Scott D. Linz, Jiaozi Wang, Robin Steinigeweg +1
Diffusion is an ubiquitous phenomenon. It is a widespread belief that as long as the area under a current autocorrelation function converges in time, the corresponding spatiotempor…