6 papers
A comparative study of perturbative and nonequilibrium Green's function approaches for Floquet sidebands in periodically driven quantum systems
Karun Gadge, Marco Merboldt, Michael Schüler +6
We compare two complementary theoretical approaches to compute and interpret Floquet sidebands in periodically driven quantum materials: a first-order perturbative approach (first-…
Matrix-product-state-based band-Lanczos solver for quantum cluster approaches
Sebastian Paeckel, Thomas Köhler, Salvatore R. Manmana +1
We present matrix-product state (MPS) based band Lanczos method as solver for quantum cluster methods such as the variational cluster approximation. While a naïve implementation o…
Stability of Floquet sidebands and quantum coherence in 1D strongly interacting spinless fermions
Karun Gadge, Salvatore R. Manmana
For strongly correlated quantum systems, fundamental questions about the formation and stability of Floquet-Bloch sidebands (FBs) upon periodic driving remain unresolved. Here, we…
Rate Function Modelling of Quantum Many-Body Adiabaticity
Vibhu Mishra, Salvatore Manmana, Stefan Kehrein
The quantum adiabatic theorem is a fundamental result in quantum mechanics, with a multitude of applications, both theoretical and practical. Here, we investigate the dynamics of a…
Page Curve and Entanglement Dynamics in an Interacting Fermionic Chain
Rishabh Jha, Salvatore R. Manmana, Stefan Kehrein
Generic non-equilibrium many-body systems display a linear growth of bipartite entanglement entropy in time, followed by a volume law saturation. In stark contrast, the Page curve…
Time evolution of the local density of states of strongly correlated fermions coupled to a nanoprobe
Tobias Blum, Reinhard M. Noack, Salvatore R. Manmana
We study the time evolution of a one-dimensional system of strongly correlated electrons (a 'sample') that is suddenly coupled to a smaller, initially empty system (a 'nanoprobe'),…