Laser cooling at resonance

Yaakov Yudkin, Lev Khaykovich

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We show experimentally that three-dimensional laser cooling of lithium atoms on the D2 line is possible when the laser light is tuned exactly to resonance with the dominant atomic transition. Qualitatively, it can be understood by applying simple Doppler cooling arguments to the specific hyperfine structure of the excited state of lithium atoms, which is both dense and inverted. However, to build a quantitative theory, we must resolve to a full model which takes into account both the entire atomic structure of all 24 Zeeman sublevels and the laser light polarization. Moreover, by means of Monte Carlo simulations, we show that coherent processes play an important role in showing consistency between the theory and the experimental results.

Original languageEnglish
Article number053403
JournalPhysical Review A
Issue number5
StatePublished - 3 May 2018

Bibliographical note

Publisher Copyright:
© 2018 American Physical Society.


We acknowledge fruitful discussions with F. Chevy, J. Dalibard, and D. A. Kessler. This research was supported by the Israel Science Foundation (Grant No. 1340/16) and FIRST Program (Grant No. 2298/16).

FundersFunder number
Foundation for Ichthyosis and Related Skin Types2298/16
Israel Science Foundation1340/16


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