Band gaps induced by vacuum photons in closed semiconductor cavities

O. V. Kibis, K. B. Arnardottir, I. A. Shelykh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We consider theoretically a closed (zero-dimensional) semiconductor microcavity where a confined vacuum photonic mode is coupled to electrons in the 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, which makes this QED effect measurable in state-of-the-art experiments.

Original languageEnglish
Article number055802
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
Publication statusPublished - 18 Nov 2014

Bibliographical note

Publisher Copyright:
© 2014 American Physical Society.


Dive into the research topics of 'Band gaps induced by vacuum photons in closed semiconductor cavities'. Together they form a unique fingerprint.

Cite this