Subcycle dynamics of Dirac fermions in topological insulators (A05)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2017
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 314695032

Phase-locked infrared light pulses will be used to trace and control topologically protected Dirac fermions faster than a cycle of light. Following the concept of lightwave electronics, we will ballistically accelerate Dirac fermions with the carrier wave of light and study new quantum aspects of quasi-relativistic dynamics, such as Berry curvature effects, Zitterbewegung, and lightwave spin¬tronics. Going beyond single-particle dynamics, we will explore collective excitations, such as low-loss Dirac plasmon polaritons, and control their linear and nonlinear response in TI nanostructures directly in space and time, by ultrafast nanoscopy.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1277: Emergent Relativistic Effects in Condensed Matter: From Fundamental Aspects to Electronic Functionality
• Applicant Institution: Universität Regensburg
• Project Heads: Professor Dr. Rupert Huber; Dr. Markus A. Huber