Magnetic illusion: transforming a magnetic object into another object by negative permeability

TL;DR

This paper introduces a method to create magnetic illusions by transforming an object's magnetic signature into that of another using negative-permeability materials, verified through experiments emulating these materials with currents.

Contribution

The work demonstrates the theoretical prediction and experimental realization of magnetic object transformation via negative-permeability materials emulated by currents, enabling advanced magnetic field control.

Findings

Successful experimental transformation of a ferromagnet's magnetic response into that of a superconductor.

Emulation of negative-permeability materials using tailored current sets.

Potential for novel magnetic field control devices.

Abstract

We theoretically predict and experimentally verify the illusion of transforming the magnetic signature of a 3D object into that of another arbitrary object. This is done by employing negative-permeability materials, which we demonstrate that can be emulated by tailored sets of currents. The experimental transformation of the magnetic response of a ferromagnet into that of its antagonistic material, a superconductor, is presented to confirm the theory. The emulation of negative-permeability materials by currents provides a new pathway for designing devices for controlling magnetic fields in unprecedented ways.