Periodically driven many-body and dissipative systems: Topological stabilization of transport (C04)

• Subject Area: Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas ; Experimental Condensed Matter Physics ; Theoretical Condensed Matter Physics
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 277625399

In this project, we will experimentally and theoretically investigate how nonadiabatic periodic driving and tailored dissipation can be used to induce topological effects in open lattices. In particular, we will study the properties of the driven, non-Hermitian Rice-Mele model near its exceptional point and use two-frequency driving to generate an edge state in the 2D Floquet frequency space. Moreover, we will study the topological properties of the non-Hermitian Aubry-Andre-Harper model. Experimentally, we will employ waveguide arrays with tailored absorption profiles to implement the open lattices and use the Floquet-Keldysh formalism for their theoretical description.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 185: Open System Control of Atomic and Photonic Matter (OSCAR)
• Applicant Institution: Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
• Project Heads: Professor Dr. Johann Kroha; Professor Dr. Stefan Linden