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arXiv · 2507.09604

Quantum Hall-like effect for neutral particles with magnetic dipole moments in a quantum dot

Carlos Magno O. Pereira·Edilberto O. Silva
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Abstract

We predict a new class of quantum Hall phenomena in completely neutral systems, demonstrating that the interplay between radial electric fields and dipole moments induces exact $e^2/h$ quantization without the need for Landau levels or external magnetic fields. Contrary to conventional wisdom, our theory reveals that: (i) the singularity of line charges does not destroy topological protection, (ii) spin-control of quantization emerges from boundary conditions alone, and (iii) the effect persists up to 25 K, surpassing typical neutral systems. These findings establish electric field engineering as a viable route to topological matter beyond magnetic paradigms.

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Carlos Magno O. Pereira, Edilberto O. Silva. 2025-07-13. Quantum Hall-like effect for neutral particles with magnetic dipole moments in a quantum dot. https://doi.org/10.1016/j.physe.2025.116381

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