Quenching of resonant transmission through an oscillating quantum well

The transmission probability of electrons traversing a quantum well subject to a harmonic driving force ${\mathit{V}}_1$ cos(ωt), matched between two static barriers, is shown to exhibit a rich spectrum of sidebands in addition to the common central resonance. The intensity of these bands is an oscillatory function of the driving amplitude ${\mathit{V}}_1$ and frequency ω, with a strong simultaneous reduction of the transmission probabilities of all bands at characteristic ratios ${\mathit{V}}_1$/ħω. It is shown that such a quenching is related to a vanishing amplitude of the central band, and analytical results, nonperturbative in ${\mathit{V}}_1$, are presented.