Strong coupling of the cyclotron motion of surface electrons on liquid helium to a microwave cavity

Abstract

The strong coupling regime is observed in a system of two-dimensional electrons whose cyclotron motion is coupled to an electro-magnetic mode in a Fabry-Perot cavity resonator. The Rabi splitting of eigenfrequencies of coupled motion is observed both in the cavity reflection spectrum and ac current of electrons, the latter probed by measuring their bolometric photoresponse. Despite the fact that similar observations of the Rabi splitting in many-particle systems have been described as a quantum-mechanical effect, we show that the observed splitting can be explained completely by a model based on the classical electrodynamics.

main text (5 pages, 3 figures) and supplemental material (3 pages, 2 figures), accepted to PRL

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• Piezoacoustics for precision control of electrons floating on helium
• Electrically controllable cyclotron resonance
• Strong coupling of two-dimensional electron ensemble to a single-mode cavity resonator
• Strong Coupling of Collection of Emitters on Hyperbolic Meta-Material
• Unconventional field-effect transistor composed of electrons floating on liquid helium
• Plasmon Mode Engineering with Electrons on Helium
• Internal cyclotron probe of the vertical polarizability of a surface-state electron on helium