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Stabilization of molecular atoms

Lee1, Farrelly, Uzer

  • 1Department of Chemistry, Utah State University, Logan 84322-0300, USA.

Faraday Discussions
|October 21, 2000
PubMed
Summary

External electric and magnetic fields can stabilize ion-pair states by creating equilibrium points. This allows for long-lived, non-spreading wavepackets, as demonstrated for the hydrogen ion-pair.

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Area of Science:

  • Atomic and Molecular Physics
  • Quantum Mechanics
  • Chemical Physics

Background:

  • Ion-pair states are fundamental in atomic and molecular physics.
  • Controlling the dynamics of these states is crucial for understanding chemical reactions and spectroscopy.
  • Previous studies have explored various methods for ion-pair state manipulation.

Purpose of the Study:

  • To demonstrate the stabilization of ion-pair state motion using external fields.
  • To engineer electric and magnetic fields for creating stable equilibrium points.
  • To investigate the application of this method to the H(+)-H- ion pair.

Main Methods:

  • Utilizing combined Coulomb, electric, and magnetic forces.
  • Engineering field configurations to create outer equilibrium points.
  • Theoretical modeling of coherent wavepacket dynamics.

Main Results:

  • Demonstrated the possibility of stabilizing ion-pair motion.
  • Identified conditions for creating stable outer equilibrium points.
  • Showed that these points can support non-spreading coherent wavepackets and long-lived states.
  • Applied the method to the H(+)-H- ion pair.

Conclusions:

  • External fields offer a viable method for stabilizing ion-pair states.
  • Engineered fields can create conditions for long-lived quantum states.
  • This approach has potential applications in spectroscopy, such as threshold ion-pair production spectroscopy (TIPPS).

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