Quantum control of the spin-orbit interaction using the Autler-Townes effect

E. H. Ahmed, S. Ingram, T. Kirova, O. Salihoglu, J. Huennekens, J. Qi, Y. Guan, A. M. Lyyra

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


We have demonstrated quantum control of the spin-orbit interaction based on the Autler-Townes (ac-Stark) effect in a molecular system using a cw optical field. We show that the enhancement of the spin-orbit interaction between a pair of weakly interacting singlet-triplet rovibrational levels, GΠg1(v=12,J=21,f)-1Σg-3(v=1,N=21,f), separated by 750 MHz in the lithium dimer, depends on the Rabi frequency (laser power) of the control laser. The increase in the spin-orbit interaction due to the control field is observed as a change in the spin character of the individual components of the perturbed pair.

Original languageEnglish (US)
Article number163601
JournalPhysical review letters
Issue number16
StatePublished - Oct 11 2011

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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