2 papers
cond-mat.mes-hall2026
A Collective-Spin Derivation of the Uniform Magnon Hamiltonian in Cavity Magnonics
Tomas Aguiar, Marcos Cesar de Oliveira
We present a direct collective-spin derivation of the effective uniform-mode Hamiltonian used in cavity magnonics. Starting from a nearest-neighbor Heisenberg ferromagnet coupled t…
cond-mat.mes-hall2025
Perturbative Input-Output Theory of Floquet Cavity Magnonics and Magnon Energy Shifts
T. Aguiar, M. C. de Oliveira
We develop a perturbative input-output formalism to compute the reflectance and transmittance spectra of cavity magnonics systems subject to a Floquet modulation. The method exploi…