2 papers
cond-mat.mes-hall2025
Transport of Dirac magnons driven by gauge fields
Luis Fernández, Ka Shen, Leandro O. Nascimento +3
We present a unified quantum field theory for Dirac magnons coupled to emergent gauge fields. At zero temperature, any space- and time-dependent gauge perturbation drives magnons o…
cond-mat.mes-hall2025
Quantum Geometry of Altermagnetic Magnons Probed by Light
Rundong Yuan, Wojciech J. Jankowski, Ka Shen +1
Magnons with momentum-dependent chirality are a key signature of altermagnets. We identify bicircular light as a smoking-gun optical probe for chiral altermagnetic magnons, selecti…