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Spin vector potential and spin Aharonov-Bohm effect.

Jing-Ling Chen1, Xing-Yan Fan1, Xiang-Ru Xie2

  • 1Theoretical Physics Division, Chern Institute of Mathematics, Nankai University, Tianjin 300071, China.

Fundamental Research
|December 30, 2025
PubMed
Summary
This summary is machine-generated.

Researchers propose a novel spin vector potential, analogous to the electromagnetic Aharonov-Bohm effect. A thought experiment demonstrates the spin Aharonov-Bohm effect, explaining spin interactions and predicting new spin-orbital interactions.

Keywords:
Angular momentum operatorDouble-slit interference experimentSpin Aharonov-Bohm effectSpin interactionsSpin vector potential

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Area of Science:

  • Quantum Physics
  • Quantum Mechanics
  • Condensed Matter Physics

Background:

  • The Aharonov-Bohm (AB) effect reveals quantum phenomena where charged particles are influenced by electromagnetic potentials in field-free regions.
  • This highlights the significance of electromagnetic potentials in quantum mechanics, exceeding their classical role.
  • The original AB effect is electromagnetic, relying on a specific vector potential.

Purpose of the Study:

  • To hypothesize the existence of a 'spin vector potential' for particles possessing intrinsic spin.
  • To propose and analyze a gedanken (thought) experiment demonstrating the spin Aharonov-Bohm effect.
  • To apply the spin vector potential concept to explain existing spin interactions and predict new ones.

Main Methods:

  • Postulating a spin vector potential based on a particle's spin operator.
  • Designing a spin Aharonov-Bohm double-slit interference experiment for potential laboratory verification.
  • Utilizing the spin vector potential to derive explanations for Dzyaloshinsky-Moriya and dipole-dipole interactions.

Main Results:

  • Introduction of the theoretical framework for spin vector potential.
  • Proposal of a feasible experimental setup to observe the spin Aharonov-Bohm effect.
  • Successful explanation of Dzyaloshinsky-Moriya and dipole-dipole spin interactions.
  • Prediction of a novel spin-orbital interaction.

Conclusions:

  • The spin vector potential offers a new perspective on quantum phenomena involving particle spin.
  • The proposed spin Aharonov-Bohm experiment provides a pathway for empirical validation.
  • This framework unifies explanations for various spin interactions and opens avenues for discovering new quantum effects.