3 papers
cond-mat.mes-hall2026
Dynamical breaking of inversion symmetry, strong second harmonic generation, and ferroelectricity with nonlinear phonons
Egor I. Kiselev
We show how crystalline inversion symmetry can be dynamically broken by optical phonons with generic, hardening Kerr-like non-linearities. The symmetry-broken state is reached thro…
cond-mat.mes-hall2025
Exciting terahertz magnons with amplitude modulated light: spin pumping, squeezed states, symmetry breaking and pattern formation
Egor I. Kiselev, Jonas F. Karcher, Mark S. Rudner +2
We show how amplitude modulated, coherent high-frequency drives can be used to access otherwise difficult to reach collective resonances and off-resonantly induce parametric instab…
cond-mat.mes-hall2025
Orbital Hall Effect and Angular Momentum Dynamics in Confined Geometries
Egor I. Kiselev, Benoît Douçot, Roderich Moessner
We present an analysis of the orbital Hall effect (OHE) in a strip geometry and derive a formula for the orbital angular momentum (OAM) accumulation at the edges. The result is exp…