Journal Article

PUBDB-2023-06216

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Sympathetically cooled highly charged ions in a radio-frequency trap with superconducting magnetic shielding

Dijck, E. A. (Corresponding author) ; Warnecke, C. ; Wehrheim, M. ; Henninger, R. B. ; Eff, J. ; Georgiou, K. ; Graf, A. ; Kokh, S. ; Sajith, L. P. K.DESY* ; Mayo, C. ; Schäfer, V. M. ; Volk, C. ; Schmidt, P. O. ; Pfeifer, T. ; Crespo López-Urrutia, J. R.

2023
American Institute of Physics Melville

This record in other databases:        

Please use a persistent id in citations: doi:10.1063/5.0160537  doi:10.3204/PUBDB-2023-06216

Report No.: arXiv:2306.01670

Abstract: We sympathetically cool highly charged ions (HCI) in Coulomb crystals of Doppler-cooled Be+ ions confined in a cryogenic linear Paul trap that is integrated into a fully enclosing radio-frequency resonator manufactured from superconducting niobium. By preparing a single Be+ cooling ion and a single HCI, quantum logic spectroscopy toward frequency metrology and qubit operations with a great variety of species are enabled. While cooling down the assembly through its transition temperature into the superconducting state, an applied quantization magnetic field becomes persistent, and the trap becomes shielded from subsequent external electromagnetic fluctuations. Using a magnetically sensitive hyperfine transition of Be+ as a qubit, we measure the fractional decay rate of the stored magnetic field to be at the 10−10 s−1 level. Ramsey interferometry and spin-echo measurements yield coherence times of >400 ms, demonstrating excellent passive magnetic shielding at frequencies down to DC.

Keyword(s): shielding: magnetic ; fluctuation: electromagnetic ; magnetic field: decay rate ; ion: capture ; ion: temperature ; superconductivity ; qubit ; hyperfine structure ; ion trap: design ; interferometer ; beryllium: ion ; experimental methods ; cryogenics ; Doppler effect ; bibliography

Note: 16 pages, 19 figures. The following article has been submitted to Review of Scientific Instruments. After it is published, it will be found at https://rsi.aip.org/

---

Contributing Institute(s):

1. Z_DET (Z_DET)

Research Program(s):

1. 622 - Detector Technologies and Systems (POF4-622) (POF4-622)
2. DFG project G:(GEPRIS)390837967 - EXC 2123: QuantumFrontiers - Licht und Materie an der Quantengrenze (390837967) (390837967)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Dijck, E. A. (Corresponding author) ; Warnecke, C. ; Wehrheim, M. ; Henninger, R. B. ; Eff, J. ; Georgiou, K. ; Graf, A. ; Kokh, S. ; Kozhiparambil Sajith, L. P.DESY* ; Mayo, C. ; Schäfer, V. M. ; Volk, C. ; Schmidt, P. O. ; Pfeifer, T. ; Crespo López-Urrutia, J. R.
Cold highly charged ions in a radio-frequency trap with superconducting magnetic shielding
    Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---