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Article overview
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High-Fidelity State Detection of Alkali-Metal Atoms in Optical Tweezer Traps | | Matthew N. H. Chow
; Bethany J. Little
; Yuan-Yu Jau
; | | Date: |
1 Jun 2022 | | Abstract: | We demonstrate discrimination of ground-state hyperfine manifolds of a cesium
atom in an optical tweezer using a simple probe beam with
0.16
aisebox{0.5ex}{$^{+0.03}_{-0.02}$}% detection infidelity and 2.6(2)%
detection-driven loss of the bright state, nearly an order of magnitude better
than previously published low-loss readout results for alkali-metal atoms in
optical tweezers. By accepting 14.1(3)% loss of the bright state, we reach a
state discrimination fidelity of 99.89
aisebox{0.5ex}{$^{+0.02}_{-0.02}$}%.
Our low-atom-loss and high-fidelity state detection takes advantage of an
adaptive detection method to mitigate heating during detection and eliminates
the extra depumping mechanism due to population transfer between excited-state
sublevels through V-type stimulated Raman transitions caused by the trap laser
when the probe laser is present. In this work, complex optical systems and
stringent vacuum are not required. | | Source: | arXiv, 2206.00144 | | Services: | Forum | Review | PDF | Favorites | |
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