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arXiv · 1410.1829

Band gaps induced by vacuum photons in closed semiconductor cavities

O. V. Kibis·K. B. Arnardottir·I. A. Shelykh
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Abstract

We consider theoretically a closed (zero-dimensional) semiconductor microcavity where confined vacuum photonic mode is coupled to electrons in valence band of the semiconductor. It is shown that vacuum-induced virtual electron transitions between valence and conduction bands result in renormalization of electron energy spectrum. As a consequence, vacuum-induced band gaps appear within the valence band. Calculated values of the band gaps are of sub-meV scale, that makes this QED effect to be measurable in state-of-the-art experiments.

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O. V. Kibis, K. B. Arnardottir, I. A. Shelykh. 2014-11-20. Band gaps induced by vacuum photons in closed semiconductor cavities. https://doi.org/10.1103/physreva.90.055802

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