High-frequency blockade and related phenomena

TL;DR

This paper investigates systems with vibrating potentials that can, under certain conditions, perfectly and elastically reflect electrons, enabling near-ideal electron localization within a continuous spectrum.

Contribution

It reveals conditions under which vibrating potential systems achieve perfect elastic reflection, a phenomenon called high-frequency blockade, enabling electron localization.

Findings

Identification of conditions for perfect elastic reflection

Demonstration of near-ideal electron localization

Analysis of inelastic transmission and reflection phenomena

Abstract

We study systems with local vibrating potentials, one-dimensional single and double wells and the tight-binding 1D model with single vibrating site. In general, these systems transmit, or reflect particles inelastically, with absorption or emission of several frequency quanta. Nevertheless, we have found that at some conditions these systems can perfectly and elastically reflect electrons. This high-frequency "blockade" give rise to unique possibility of near-ideal localization of electron with the energy lying on the background of continuous energy spectrum. We discuss different consequences of this statement.