"Millikan oil drops" as quantum transducers between electromagnetic and gravitational radiation

TL;DR

This paper proposes using superfluid helium drops coated with electrons as quantum transducers to convert electromagnetic waves into gravitational waves and vice versa, enabling new observational and communication possibilities.

Contribution

It introduces a novel concept of Millikan oil drops as efficient quantum transducers for EM and gravitational radiation, suggesting practical experimental setups.

Findings

Potential to observe the gravity-wave analog of the Cosmic Microwave Background

Feasibility of Earth interior communication via gravitational waves

Proposal for a Hertz-like experiment converting EM to GR waves

Abstract

Pairs of Planck-mass-scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. This would open up observations of the gravity-wave analog of the Cosmic Microwave Background from the extremely early Big Bang, and also communications directly through the interior of the Earth.