Photoassociation Spectroscopy of Ytterbium Atoms with Dipole-allowed and Intercombination Transitions Enomoto, M. Kitagawa, K. Kasa, S. Tojo, T. Fukuhar Yamaguchi, S. Uetake, Y. Takasu, and Y. Takahashi, oto University Ultracold Group II atoms: Theory and Applications 06/Sep/18 ににににに COE ににに
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K. Enomoto, M. Kitagawa, K. Kasa, S. Tojo, T. Fukuhara,
Photoassociation Spectroscopy of Ytterbium Atoms with Dipole-allowed and Intercombination Transitions. K. Enomoto, M. Kitagawa, K. Kasa, S. Tojo, T. Fukuhara, A. Yamaguchi, S. Uetake, Y. Takasu, and Y. Takahashi, Kyoto University. - PowerPoint PPT Presentation
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Photoassociation Spectroscopy of Ytterbium Atoms with Dipole-allowed
and Intercombination Transitions
K. Enomoto, M. Kitagawa, K. Kasa, S. Tojo, T. Fukuhara, A. Yamaguchi, S. Uetake, Y. Takasu, and Y. Takahashi, Kyoto University
Ultracold Group II atoms: Theory and Applications 06/Sep/18 ITAMP
についての COE 報告会
YtterbiumYtterbium
Group IIGroup II
Workshop on ultracold group II atoms
2000 Cold Alkaline-Earth Atoms (in ITAMP)
2003 Cold Alkaline-Earth Atoms (in Copenhagen)
2006 Sep/18-20 Ultracold Group II Atoms (in ITAMP)
Atomic clock
Number of invited speakers
Experiment Theory
Photoassociation
Novel species/mixtures
Others
4 1
4 5
5 1
3 5
Next generation atomic clock
1S0-3P0 atomic transition has extremelynarrow linewidth ( <0.1 Hz), and is inert to a magnetic field. The atoms trapped in an optical lattice with the magic wavelength are free from the Doppler broadening and the collisional shift.
Frequency standard with / ~ 10-17
Precise frequency measurements of Sr and Yb in 1D latticehave been presented (NIST, JILA, SYRTE, PTB groups).
The precision is about 5Hz.
R
g
Photoassociation (PA)
Ultracold atoms has narrow thermal distribution, so free-boundtransitions (photoassociation) areobserved with high resolution.This photoassociation is a powerfultool for probing rovibrational levelsnear the threshold and scattering states.
Such parameters are determined for Sr, Ca, and Yb.
Atomic parameters such asradiative lifetimes and scatteringlengths are determined precisely.
Theory for optical control of collision, PA in low dimensions