Sr+ isotope shift measurement
POSTER
Abstract
Precision isotope shift spectroscopy can improve our knowledge of atomic and nuclear structure. Combined with a King plot analysis, such measurements could also constrain sources of new physics beyond the standard model of particle physics. We present preliminary isotope shift measurements of the $5s\ ^2S_{1/2} \rightarrow 5p\ ^2P_{1/2}$ electric dipole transition with a precision at the 100 kHz level. With $^{88}$Sr$^+$, $^{86}$Sr$^+$ and $^{84}$Sr$^+$, we will measure the isotope shifts of the dipole-allowed $4d\ ^2D_{5/2} \rightarrow 5p\ ^2P_{3/2}$ transition, and the narrow $5s\ ^2S_{1/2} \rightarrow 4d\ ^2D_{5/2}$ electric quadrupole transition. We plan to work with the radioisotope $^{90}$Sr$^{+}$ to test for King plot nonlinearities.
Authors
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Xiaoyang Shi
University of California, Santa Barbara
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Michael W. Straus
University of California, Santa Barbara
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Xinghua Li
Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong U, Key Laboratory for Physical Electronics and Devices of the Ministry of Education Shaanxi Key Lab of Information Photonic Technique, Xi’an Jiaotong Uni
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Sean W. Buechele
University of California, Santa Barbara
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Mingyu Fan
University of California, Santa Barbara
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Craig Holliman
University of California, Santa Barbara
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Andrew Jayich
University of California, Santa Barbara