Details
| Original language | English |
|---|---|
| Article number | 040346 |
| Journal | PRX Quantum |
| Volume | 4 |
| Issue number | 4 |
| Publication status | Published - 20 Dec 2023 |
Abstract
Keywords
- quant-ph, physics.atom-ph
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
- Computer Science(all)
- Mathematics(all)
- Mathematical Physics
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In: PRX Quantum, Vol. 4, No. 4, 040346, 20.12.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Sideband thermometry of ion crystals
AU - Vybornyi, Ivan
AU - Dreissen, Laura S.
AU - Kiesenhofer, Dominik
AU - Hainzer, Helene
AU - Bock, Matthias
AU - Ollikainen, Tuomas
AU - Vadlejch, Daniel
AU - Roos, Christian F.
AU - Mehlstäubler, Tanja E.
AU - Hammerer, Klemens
N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2023/12/20
Y1 - 2023/12/20
N2 - Coulomb crystals of cold trapped ions are a leading platform for the realisation of quantum processors and quantum simulations and, in quantum metrology, for the construction of optical atomic clocks and for fundamental tests of the Standard Model. For these applications, it is not only essential to cool the ion crystal in all its degrees of freedom down to the quantum ground state, but also to be able to determine its temperature with a high accuracy. However, when a large ground-state cooled crystal is interrogated for thermometry, complex many-body interactions take place, making it challenging to accurately estimate the temperature with established techniques. In this work we present a new thermometry method tailored for ion crystals. The method is applicable to all normal modes of motion and does not suffer from a computational bottleneck when applied to large ion crystals. We test the temperature estimate with two experiments, namely with a 1D linear chain of 4 ions and a 2D crystal of 19 ions and verify the results, where possible, using other methods. The results show that the new method is an accurate and efficient tool for thermometry of ion crystals.
AB - Coulomb crystals of cold trapped ions are a leading platform for the realisation of quantum processors and quantum simulations and, in quantum metrology, for the construction of optical atomic clocks and for fundamental tests of the Standard Model. For these applications, it is not only essential to cool the ion crystal in all its degrees of freedom down to the quantum ground state, but also to be able to determine its temperature with a high accuracy. However, when a large ground-state cooled crystal is interrogated for thermometry, complex many-body interactions take place, making it challenging to accurately estimate the temperature with established techniques. In this work we present a new thermometry method tailored for ion crystals. The method is applicable to all normal modes of motion and does not suffer from a computational bottleneck when applied to large ion crystals. We test the temperature estimate with two experiments, namely with a 1D linear chain of 4 ions and a 2D crystal of 19 ions and verify the results, where possible, using other methods. The results show that the new method is an accurate and efficient tool for thermometry of ion crystals.
KW - quant-ph
KW - physics.atom-ph
UR - http://www.scopus.com/inward/record.url?scp=85180976903&partnerID=8YFLogxK
U2 - 10.1103/PRXQuantum.4.040346
DO - 10.1103/PRXQuantum.4.040346
M3 - Article
VL - 4
JO - PRX Quantum
JF - PRX Quantum
IS - 4
M1 - 040346
ER -