Femtosecond quantum magnonics in a nonlinear regime far from equilibrium (B07)

• Subject Area: Experimental Condensed Matter Physics
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 425217212

Ultrashort laser pulses have been already employed to generate, manipulate and detect coherent magnons on elementary timescales in magnetic materials. So far, the vast majority of experiments revealed dynamics well described semiclassically. This project aims at exploring a highly nonlinear regime of coherent spin dynamics induced by resonantly exciting pairs of magnons near the edges of the Brillouin zone with mid-infrared frequencies. The resulting processes will be monitored relying on a variety of complementary experimental approaches in order to verify intrinsically quantum mechanical properties such as squeezing and entanglement.

• 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: Dr. Davide Bossini