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115 papers · 1 filter
Zero crossings of the differential scalar polarizability of Ba clock transition
N Jayjong, M D K Lee, K J Arnold +1
The differential scalar polarizability of the Ba S-to-D clock transition has a zero crossing near 481nm, which is measured to be 623.603\,13(17)\,THz.…
Efficient water-cooled Bitter-type electromagnet for Zeeman slowing in cold-atom experiments
Rishav Koirala, Ben A. Olsen
We describe the design, construction, and characterization of a Bitter-type electromagnet that produces a spatially-dependent magnetic field used for Zeeman slowing in cold-atom ex…
Magic wavelength at 477 nm for the strontium clock transition
Xinyuan Ma, Swarup Das, David Wilkowski +1
We report the experimental measurement of a magic wavelength at 476.82362(8) nm for the 88Sr clock transition. The magic wavelength is determined through AC-Stark shift spectroscop…
Fault-tolerant hyper-Ramsey spectroscopy of optical clock transitions with dynamical decoupling
B. Ilikj, T. Zanon-Willette, D. Wilkowski +2
A probe laser field that interrogates an atomic transition also shifts it. Although Hyper-Ramsey (HR) spectroscopy was developed to mitigate these light-induced frequency shifts, t…
Absolute frequency measurement of a Lu optical frequency standard via link to international atomic time
Zhao Zhang, Qi Zhao, Qin Qichen +4
We report on an absolute frequency measurement of the standard frequency which is defined as the hyperfine-average of to o…
Super-resolution optical trapping of multiple cold atoms
Kelvin Lim, Vincent Mancois, Haijun Wu +2
Arrays of optical tweezers form the backbone of neutral atoms analog and digital quantum processors. However, the inter-trap distance remains generally much larger than the size of…