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Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
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High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
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Published on: June 28, 2016

Optical feshbach resonance using the intercombination transition.

K Enomoto1, K Kasa, M Kitagawa

  • 1Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan.

Physical Review Letters
|December 31, 2008
PubMed
Summary
This summary is machine-generated.

We demonstrate precise control over atomic interactions using optical Feshbach resonance in ytterbium atoms. This method effectively manipulates atomic scattering properties, offering new possibilities for quantum control.

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Area of Science:

  • Atomic Physics
  • Quantum Control
  • Laser Spectroscopy

Background:

  • Atomic interactions are fundamental to many quantum phenomena.
  • Controlling these interactions is key for advancements in quantum technologies.
  • Optical Feshbach resonances offer a promising avenue for tunable atomic interactions.

Purpose of the Study:

  • To investigate the control of the scattering wave function using optical Feshbach resonance.
  • To utilize the narrow intercombination line (1S0-3P1) of ytterbium atoms for efficient manipulation.
  • To monitor the manipulation of scattering properties via photoassociation rates.

Main Methods:

  • Employing an optical Feshbach resonance effect with ytterbium atoms.
  • Utilizing a narrow intercombination line (1S0-3P1) for precise control.
  • Monitoring scattering wave function changes by observing photoassociation rate variations induced by a secondary laser.

Main Results:

  • Demonstrated efficient control of the scattering wave function in ytterbium atoms.
  • Confirmed the effectiveness of the optical Feshbach resonance for isotopes with large negative scattering lengths (e.g., 172Yb).
  • Observed a significant change of approximately 30 nm in the scattering length (zero-energy limit).

Conclusions:

  • Optical Feshbach resonance provides a powerful tool for manipulating atomic scattering properties.
  • The narrow intercombination line in ytterbium atoms enables efficient and precise quantum control.
  • This technique has implications for developing advanced atomic systems and quantum technologies.