Project Details
Projekt
P5: On-chip ultrafast control of kagome metals
Subject Area
Experimental Condensed Matter Physics
Theoretical Condensed Matter Physics
Theoretical Condensed Matter Physics
Term
since 2025
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 531215165
OPTIMAL defines three goals aimed at using the coupling between light and matter to establish control over macroscopic quantum phenomena in solids: Goals G1 and G2 entail photoexcitation with ultrafast pulses of light to control intertwined orders, either with short pulses triggering dynamics ("impulsive control"§) or during a periodic drive ("Floquet engineering"). Goal G3 aims at embedding the material in a cavity to engineer coupling between incident or vacuum photons to establish control over quantum electronic phases. The key questions are: can one manipulate emergent order and topology in kagome metals using the symmetry-breaking induced by strong fields via ultrafast laser pulses? Can we develop protocols for reaching hidden metastable phases and capture their ultrafast transport response? Can materials placed in a cavity open up new routes for control of emergent phases and metastable states? Kagome metals are chosen as our materials testbed to establish answers for these questions because these materials are right at the “tipping point” of diverse correlated orders. The project answers the above raised questions using on-chip ultrafast or plasmonic cavity control of kagome metals, with guidance from quantum many-body theory.
DFG Programme
Research Units
Subproject of
FOR 5750:
Optical Control of Quantum Materials (OPTIMAL)
International Connection
USA
