Details
| Original language | English |
|---|---|
| Article number | 023424 |
| Journal | Physical Review A |
| Volume | 98 |
| Issue number | 2 |
| Early online date | 27 Aug 2018 |
| Publication status | Published - Aug 2018 |
Abstract
We introduce and demonstrate double-bright electromagnetically-induced-transparency (D-EIT) cooling as an extension to EIT cooling. By involving an additional ground state, two bright states can be shifted individually into resonance for cooling of motional modes of frequencies that may be separated by more than the width of a single EIT cooling resonance. This allows three-dimensional ground-state cooling of a Ca+40 ion trapped in a linear Paul trap with a single cooling pulse. Measured cooling rates and steady-state mean motional quantum numbers for this D-EIT cooling are compared with those of standard EIT cooling as well as concatenated standard EIT cooling pulses for multimode cooling. Experimental results are compared to full-density matrix calculations. We observe a failure of the theoretical description within the Lamb-Dicke regime that can be overcome by a time-dependent rate theory. Limitations of the different cooling techniques and possible extensions to multi-ion crystals are discussed.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A, Vol. 98, No. 2, 023424, 08.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental and theoretical investigation of a multimode cooling scheme using multiple electromagnetically-induced-transparency resonances
AU - Scharnhorst, Nils
AU - Cerrillo, Javier
AU - Kramer, Johannes
AU - Leroux, Ian D.
AU - Wübbena, Jannes B.
AU - Retzker, Alex
AU - Schmidt, Piet Oliver
N1 - Funding information: The authors would like to thank Nicolas Spethmann for helpful comments on the manuscript. We acknowledge support from the DFG through CRC 1128 (geo-Q), project A03 and CRC 1227 (DQ-mat), project B03, and the state of Lower Saxony, Hannover, Germany, project VWZN2927.
PY - 2018/8
Y1 - 2018/8
N2 - We introduce and demonstrate double-bright electromagnetically-induced-transparency (D-EIT) cooling as an extension to EIT cooling. By involving an additional ground state, two bright states can be shifted individually into resonance for cooling of motional modes of frequencies that may be separated by more than the width of a single EIT cooling resonance. This allows three-dimensional ground-state cooling of a Ca+40 ion trapped in a linear Paul trap with a single cooling pulse. Measured cooling rates and steady-state mean motional quantum numbers for this D-EIT cooling are compared with those of standard EIT cooling as well as concatenated standard EIT cooling pulses for multimode cooling. Experimental results are compared to full-density matrix calculations. We observe a failure of the theoretical description within the Lamb-Dicke regime that can be overcome by a time-dependent rate theory. Limitations of the different cooling techniques and possible extensions to multi-ion crystals are discussed.
AB - We introduce and demonstrate double-bright electromagnetically-induced-transparency (D-EIT) cooling as an extension to EIT cooling. By involving an additional ground state, two bright states can be shifted individually into resonance for cooling of motional modes of frequencies that may be separated by more than the width of a single EIT cooling resonance. This allows three-dimensional ground-state cooling of a Ca+40 ion trapped in a linear Paul trap with a single cooling pulse. Measured cooling rates and steady-state mean motional quantum numbers for this D-EIT cooling are compared with those of standard EIT cooling as well as concatenated standard EIT cooling pulses for multimode cooling. Experimental results are compared to full-density matrix calculations. We observe a failure of the theoretical description within the Lamb-Dicke regime that can be overcome by a time-dependent rate theory. Limitations of the different cooling techniques and possible extensions to multi-ion crystals are discussed.
UR - http://www.scopus.com/inward/record.url?scp=85052711270&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1711.00732
DO - 10.48550/arXiv.1711.00732
M3 - Article
AN - SCOPUS:85052711270
VL - 98
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 2
M1 - 023424
ER -