Magic wavelength for the hydrogen 1S-2S transition
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The magic wavelength for an optical lattice for hydrogen atoms that cancels the lowest order ac Stark shift of the 1S-2S transition is calculated to be 513 nm. The magnitudes of the ac Stark shift ΔE = −119 Hz/(kW/cm[superscript 2]) and the slope dΔE/dν = −2.77 Hz/(GHz kW/cm[superscript 2]) at the magic wavelength suggest that a stable and narrow-line-width trapping laser is necessary to achieve a deep enough optical lattice to confine hydrogen atoms in a way that gives a small enough light shift for the precision spectroscopy of the 1S-2S transition.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold Atoms
Physical Review A
American Physical Society
Kawasaki, Akio. "Magic wavelength for the hydrogen 1S-2S transition." Phys. Rev. A 92, 042507 (October 2015). © 2015 American Physical Society
Final published version