Details
| Original language | English |
|---|---|
| Article number | 043412 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 85 |
| Issue number | 4 |
| Publication status | Published - 13 Apr 2012 |
Abstract
Sympathetic cooling of trapped ions has become an indispensable tool for quantum-information processing and precision spectroscopy. In the simplest situation a single Doppler-cooled ion sympathetically cools another ion which typically has a different mass. We analytically investigate the effect of the mass ratio of such an ion crystal on the achievable temperature limit in the presence of external heating. As an example, we show that cooling of a single Al + with Be +, Mg +, and Ca + ions provides similar results for heating rates typically observed in ion traps, whereas cooling ions with a larger mass perform worse. Furthermore, we present numerical simulation results of the rethermalization dynamics after a background gas collision for the Al +-Ca + crystal for different cooling laser configurations.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 85, No. 4, 043412, 13.04.2012.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Sympathetic cooling of mixed-species two-ion crystals for precision spectroscopy
AU - Wübbena, Jannes B.
AU - Amairi, Sana
AU - Mandel, Olaf
AU - Schmidt, Piet Oliver
PY - 2012/4/13
Y1 - 2012/4/13
N2 - Sympathetic cooling of trapped ions has become an indispensable tool for quantum-information processing and precision spectroscopy. In the simplest situation a single Doppler-cooled ion sympathetically cools another ion which typically has a different mass. We analytically investigate the effect of the mass ratio of such an ion crystal on the achievable temperature limit in the presence of external heating. As an example, we show that cooling of a single Al + with Be +, Mg +, and Ca + ions provides similar results for heating rates typically observed in ion traps, whereas cooling ions with a larger mass perform worse. Furthermore, we present numerical simulation results of the rethermalization dynamics after a background gas collision for the Al +-Ca + crystal for different cooling laser configurations.
AB - Sympathetic cooling of trapped ions has become an indispensable tool for quantum-information processing and precision spectroscopy. In the simplest situation a single Doppler-cooled ion sympathetically cools another ion which typically has a different mass. We analytically investigate the effect of the mass ratio of such an ion crystal on the achievable temperature limit in the presence of external heating. As an example, we show that cooling of a single Al + with Be +, Mg +, and Ca + ions provides similar results for heating rates typically observed in ion traps, whereas cooling ions with a larger mass perform worse. Furthermore, we present numerical simulation results of the rethermalization dynamics after a background gas collision for the Al +-Ca + crystal for different cooling laser configurations.
UR - http://www.scopus.com/inward/record.url?scp=84860112625&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.85.043412
DO - 10.1103/PhysRevA.85.043412
M3 - Article
AN - SCOPUS:84860112625
VL - 85
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 4
M1 - 043412
ER -