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arXiv · 0909.4864

Jaynes-Cummings Models with trapped surface-state electrons in THz cavities

Miao Zhang·H. Y. Jia·J. S. Huang·L. F. Wei
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Abstract

An electron floating on the liquid Helium is proposed to be trapped (by a micro-electrode set below the liquid Helium) in a high finesse cavity. Two lowest levels of the vertical motion of the electron acts as a two-level "atom", which could resonantly interact with the THz cavity. In the Lamb-Dicke regime, wherein the electron's in-plane activity region is much smaller than the wavelength of the cavity mode, the famous Jaynes-Cummings model (JCM) could be realized. By applying an additional external classical laser beam to the electron, a driven JCM could also be implemented. With such a driven JCM certain quantum states, e.g., coherent states and the Schrodinger cat states, of the THz cavity field could be prepared by one-step evolution. The numerical results show that, for the typical parameters of the cavity and electron on liquid Helium, a strong coupling between the artificial atom and the THz cavity could be obtained.

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Miao Zhang, H. Y. Jia, J. S. Huang, L. F. Wei. 2009-09-26. Jaynes-Cummings Models with trapped surface-state electrons in THz cavities. https://doi.org/10.1364/ol.35.001686

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