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Forbidden atomic transitions driven by an intensity-modulated laser trap.

Kaitlin R Moore1, Sarah E Anderson1, Georg Raithel1

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Ponderomotive spectroscopy uses a quadratic field interaction to enable flexible, previously forbidden atomic transitions. This technique offers enhanced spatial resolution for quantum computing and precise atomic measurements.

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Area of Science:

  • Quantum physics
  • Atomic spectroscopy
  • Quantum optics

Background:

  • Spectroscopy is crucial for quantum system manipulation.
  • Standard spectroscopy relies on multipole-field interactions and established selection rules.
  • A quadratic field interaction, though less common, offers unique advantages.

Purpose of the Study:

  • To demonstrate ponderomotive spectroscopy using optical-lattice-trapped Rydberg atoms.
  • To showcase the advantages of quadratic field interactions over multipole interactions.
  • To explore applications in atomic characterization and quantum computing.

Main Methods:

  • Utilizing optical-lattice-trapped Rydberg atoms.
  • Employing pulsating lattice light to drive transitions.
  • Leveraging the quadratic (ponderomotive) field interaction.

Main Results:

  • Demonstrated ponderomotive spectroscopy on Rydberg atoms.
  • Successfully drove atomic transitions forbidden by standard selection rules.
  • Achieved significantly improved spatial resolution compared to conventional methods.

Conclusions:

  • Ponderomotive spectroscopy provides flexible transition rules and superior spatial addressability.
  • Enables measurement of previously inaccessible atomic transitions for precise constant determination.
  • Offers potential for single-site addressability in quantum computing arrays.