Quantum transport in the presence of engineered quantum fields (A03)

• Subject Area: Theoretical Condensed Matter Physics
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 425217212

We theoretically investigate the interaction of engineered quantum fields with electronic and spintronic quantum transport. First, we address tunneling through sub-nanometer gaps initiated by ultrashort light pulses, causing a subcycle dynamics in the attosecond range due to the high nonlinearity. Second, we ask how the quantum information of a squeezed magnonic field is transformed into electronic current and how it can be detected via correlations. Both topics make heavy use of nonequilibrium field theoretical methods by using Keldysh path integrals.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1432: Fluctuations and Nonlinearities in Classical and Quantum Matter beyond Equilibrium
• Applicant Institution: Universität Konstanz
• Project Head: Professor Dr. Wolfgang Belzig