3 papers
physics.optics2025
Photon State Evolution in Arbitrary Time-Varying Media
Artuur Stevens, Christophe Caloz
We introduce the instantaneous eigenstate method to study the evolution of quantum states in media with arbitrary time-varying permittivity and permeability. This method leverages…
physics.optics2024
Photon Transitions in Arbitrary Time-Varying Metamaterials
Artuur Stevens, Christophe Caloz
We present a general theory for calculating photon transitions in arbitrarily time-varying metamaterials. This theory circumvents the difficulties of conventional approaches in sol…
quant-ph2024
Electron Scattering at a Soft Temporal Potential Step
Furkan Ok, Christophe Caloz
We solve the problem of electron scattering at a soft temporal potential step. Given the relativistic nature of the problem, we use the Dirac equation, with its spinor wavefunction…