Dynamical bath control with localized impurities in a quantum gas (A04)

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

Single impurities immersed in a bath of ultracold atoms form a paradigmatic model system to study a broad variety of open-system phenomena. This project aims at measuring and theoretically modelling characteristic properties of the bath using advanced decoupling sequences. Moreover, we will apply Floquet driving of the impurity bath coupling which allows for very high control of the impurity state and unconventional many-body steady states. We will extend this objective to two periodically driven impurities and investigate the dynamical built up of mediated interactions. Additionally, we will experimentally drive quantum-engine cycles. Finally, we will theoretically explore the impact of environments with intermediate quantum statistics on the impurity state.

• 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: Dr. Imke Schneider; Professor Dr. Artur Widera