Rest-frame quasistatic theory for rotating electromagnetic systems and circuits

Ben Z. Steinberg, Nader Engheta

Research output: Contribution to journalArticlepeer-review

Abstract

A quasistatic theory for slowly rotating electromagnetic systems observed in their rest frame of reference is developed. Rotation-induced electrodynamic effects are explored, and their electric circuitry implications are discussed. It is shown that rotation may induce fictitious charges that affect lumped device dynamics and offer various device functionalities such as voltage-excited magnetic fields leading to rotation-induced memristors of positive or even negative memristance and their dualities. Rotation-induced electromagnetic gain and instabilities may exist, manifested either as parasitic processes that hamper electric circuitry functionality or as a mean for possible energy harvesting methodology in which the large-scale rotating platform serves as an essentially unlimited energy reservoir. Furthermore, as many artificially engineered electromagnetic materials consist of meta-atoms whose internal dynamics is essentially quasistatic, the study also potentially paves the way for new types of metamaterials. These effects depend on the rotation rate ω but are essentially independent of the axis location. This fundamental property renders them extremely robust and has far-reaching ramifications for a plethora of applications. A preliminary quantitative analysis for ω typical of large-scale platforms ranging from planets to artificial gravity structures is presented.

Original languageEnglish
Article number195418
JournalPhysical Review B
Volume107
Issue number19
DOIs
StatePublished - 15 May 2023

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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