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quant-ph2025
Access to Klein Tunneling via Space-Time Modulation
Furkan Ok, Amir Bahrami, Christophe Caloz
We show that space-time modulation of electromagnetic potentials enables Klein tunneling far below the static threshold. The derived kinematics reveal oblique transitions that can…
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…
quant-ph2023
Electron Scattering at a Potential Temporal Step Discontinuity
Furkan Ok, Amir Bahrami, Christophe Caloz
We solve the problem of electron scattering at a potential temporal step discontinuity. We show that the Schrodinger equation cannot account for scattering in this problem, necessi…