dorsal/arxiv
View SchemaOptical frequency standard with $Sr^+$: A theoretical many-body approach
| Authors | Chiranjib Sur, K. V. P. Latha, Rajat K. Chaudhuri, B. P. Das, D. Mukherjee |
|---|---|
| Categories | |
| ArXiv ID | physics/0702059 |
| URL | https://arxiv.org/abs/physics/0702059 |
| DOI | 10.1142/9789812772510_0015 |
Abstract
Demands from several areas of science and technology have lead to a worldwide search for accurate optical clocks with an uncertainty of 1 part in $10^{18}$, which is $10^{3}$ times more accurate than the present day cesium atomic clocks based on microwave frequency regime. In this article we discuss the electric quadrupole and the hyperfine shifts in the $5s ^{2}S_{1/2}\longrightarrow4d ^{2}D_{5/2}$ clock transition in $\mathrm{Sr^{+}}$, one of the most promising candidates for next generation optical clocks. We have applied relativistic coupled cluster theory for determining the electric quadrupole moment of the $4d ^{2}D_{5/2}$ state of $\mathrm{^{88}Sr^{+}}$ and the magnetic dipole ($A$) and electric quadrupole ($B$) hyperfine constants for the $5s ^{2}S_{1/2}$ and $4d ^{2}D_{5/2}$ states which are important in the study of frequency standards with $\mathrm{Sr^{+}}$. The effects of electron correlation which are very crucial for the accurate determination of these quantities have been discussed.
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"abstract": "Demands from several areas of science and technology have lead to a worldwide\nsearch for accurate optical clocks with an uncertainty of 1 part in $10^{18}$,\nwhich is $10^{3}$ times more accurate than the present day cesium atomic clocks\nbased on microwave frequency regime. In this article we discuss the electric\nquadrupole and the hyperfine shifts in the $5s ^{2}S_{1/2}\\longrightarrow4d\n^{2}D_{5/2}$ clock transition in $\\mathrm{Sr^{+}}$, one of the most promising\ncandidates for next generation optical clocks. We have applied relativistic\ncoupled cluster theory for determining the electric quadrupole moment of the\n$4d ^{2}D_{5/2}$ state of $\\mathrm{^{88}Sr^{+}}$ and the magnetic dipole ($A$)\nand electric quadrupole ($B$) hyperfine constants for the $5s ^{2}S_{1/2}$ and\n$4d ^{2}D_{5/2}$ states which are important in the study of frequency standards\nwith $\\mathrm{Sr^{+}}$. The effects of electron correlation which are very\ncrucial for the accurate determination of these quantities have been discussed.",
"arxiv_id": "physics/0702059",
"authors": [
"Chiranjib Sur",
"K. V. P. Latha",
"Rajat K. Chaudhuri",
"B. P. Das",
"D. Mukherjee"
],
"categories": [
"physics.atom-ph",
"physics.chem-ph"
],
"doi": "10.1142/9789812772510_0015",
"title": "Optical frequency standard with $Sr^+$: A theoretical many-body approach",
"url": "https://arxiv.org/abs/physics/0702059"
},
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