Endcap-Type Paul Trap for Precision Spectroscopy and Studies of Controlled Interactions
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| author | Prakash, Anand Ayyadevara, Akhil Krishnakumar, E. Ibrahim, M. Yatheendran, K. M. De, Subhadeep Patra, Sayan Rangwala, S. A. |
| author_facet | Prakash, Anand Ayyadevara, Akhil Krishnakumar, E. Ibrahim, M. Yatheendran, K. M. De, Subhadeep Patra, Sayan Rangwala, S. A. |
| contents | We present the design and fabrication of an endcap-type Paul trap. The trap is designed for studies with Ca$^{+}$ and Yb$^{+}$. The design, fabrication process, and characterization are presented in detail with a focus on trapping a single compensated ion at the rf node. A custom-built imaging system of $NA = 0.14$ and magnification $\approx 22 \times$ performs close to diffraction-limit and resolves multi-ion clusters. Controlled ion loading and characterization of the trap are performed using $^{40}$Ca$^{+}$. The experimentally determined quadrupole coefficient of the trap is $\approx 0.3$, which is very close to the design value. The relative frequency shift along the spectroscopy beam due to excess micromotion (EMM) is at the level of $3.5\times 10^{-18}$ for $^{40}$Ca$^{+}$. Applications of this trap encompass single-ion-based optical frequency standards, tests of fundamental physics, the study of mesoscopic Coulomb clusters, and the controlled interaction of a single ion with co-trapped atoms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_07328 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Endcap-Type Paul Trap for Precision Spectroscopy and Studies of Controlled Interactions Prakash, Anand Ayyadevara, Akhil Krishnakumar, E. Ibrahim, M. Yatheendran, K. M. De, Subhadeep Patra, Sayan Rangwala, S. A. Atomic Physics We present the design and fabrication of an endcap-type Paul trap. The trap is designed for studies with Ca$^{+}$ and Yb$^{+}$. The design, fabrication process, and characterization are presented in detail with a focus on trapping a single compensated ion at the rf node. A custom-built imaging system of $NA = 0.14$ and magnification $\approx 22 \times$ performs close to diffraction-limit and resolves multi-ion clusters. Controlled ion loading and characterization of the trap are performed using $^{40}$Ca$^{+}$. The experimentally determined quadrupole coefficient of the trap is $\approx 0.3$, which is very close to the design value. The relative frequency shift along the spectroscopy beam due to excess micromotion (EMM) is at the level of $3.5\times 10^{-18}$ for $^{40}$Ca$^{+}$. Applications of this trap encompass single-ion-based optical frequency standards, tests of fundamental physics, the study of mesoscopic Coulomb clusters, and the controlled interaction of a single ion with co-trapped atoms. |
| title | Endcap-Type Paul Trap for Precision Spectroscopy and Studies of Controlled Interactions |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2601.07328 |