Description
The nonequilibrium dynamics of quantum many-body systems is a fascinating topic hosting a rich phenomenology. Going out of equilibrium, transient states can be realized, which are hard to obtain at equilibrium. One important tool for the investigation of such transient states is to examine the time evolution of spectral properties, like time-dependent band structures, single-electron spectral functions, or local densities of states. For example, periodically driven systems possess so-called Floquet side bands, and the band structure can be modified by the periodic driving such as to realize interesting states of matter, like topological phases (‘Floquet engineering’). In this poster, I show some examples for the nonequilibrium dynamics of spectral properties of strongly correlated quantum systems when performing a global quantum quench [1], periodic driving [2], and a local perturbation [3].
References
[1] S. Paeckel, B. Fauseweh, A. Osterkorn, T. Köhler, D. Manske, and SRM, Detecting superconductivity out-of-equilibrium, PRB 101, 180507 (2020)
[2] A. Osterkorn, C. Meyer, and SRM, In-gap band formation in a periodically driven charge density wave insulator, Commun. Phys. 6, 245 (2023)
[3] T. Blum, R.M. Noack, and SRM, Time evolution of the local density of states of strongly correlated fermions coupled to a nanoprobe, arXiv:2407.15609
