High-Fidelity, Low-Loss State Detection of Alkali-Metal Atoms in Optical Tweezer Traps
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arXiv
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| Format: | Preprint |
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2022
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| _version_ | 1866909248671186944 |
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| author | Chow, Matthew N. H. Little, Bethany J. Jau, Yuan-Yu |
| author_facet | Chow, Matthew N. H. Little, Bethany J. Jau, Yuan-Yu |
| contents | We demonstrate discrimination of ground-state hyperfine manifolds of a cesium atom in an optical tweezer using a simple probe beam with 99.91(2)% detection fidelity and 0.9(2)% detection-driven loss of bright state atoms. Our detection infidelity of 0.09(2)% is an order of magnitude better than previously published low-loss readout results for alkali-metal atoms in optical tweezers. Our low atom loss and high-fidelity state detection 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 pressures are not required. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2206_00144 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | High-Fidelity, Low-Loss State Detection of Alkali-Metal Atoms in Optical Tweezer Traps Chow, Matthew N. H. Little, Bethany J. Jau, Yuan-Yu Quantum Physics Atomic Physics We demonstrate discrimination of ground-state hyperfine manifolds of a cesium atom in an optical tweezer using a simple probe beam with 99.91(2)% detection fidelity and 0.9(2)% detection-driven loss of bright state atoms. Our detection infidelity of 0.09(2)% is an order of magnitude better than previously published low-loss readout results for alkali-metal atoms in optical tweezers. Our low atom loss and high-fidelity state detection 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 pressures are not required. |
| title | High-Fidelity, Low-Loss State Detection of Alkali-Metal Atoms in Optical Tweezer Traps |
| topic | Quantum Physics Atomic Physics |
| url | https://arxiv.org/abs/2206.00144 |