Batra, N. and Sahoo, B. K. and De, S. (2016) An optimized ion trap geometry to measure quadrupole shifts of Yb-171(+) clock. Chinese Physics B, 25 (11). ISSN 1674-1056

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Abstract

We propose a new ion-trap geometry to carry out accurate measurements of the quadrupole shifts in the Yb-171 ion. This trap will minimize the quadrupole shift due to the harmonic component of the confining potential by an order of magnitude. This will be useful to reduce the uncertainties in the clock frequency measurements of the 6s S-2(1/2) -> 4f(13)6s(2) F-2(7/2) and 6s S-2(1/2) -> 5d D-2(3/2) transitions, from which we can deduce the precise values of the quadrupole moments (Theta s) of the 4f(13)6s(2) F-2(7/2) and 5d D-2(3/2) states. Moreover, it may be able to affirm the validity of the measured Theta value of the 4f(13)6s(2) F-2(7/2) state, for which three independent theoretical studies defer almost by one order of magnitude from the measurement. We also calculate Theta s using the relativistic coupled-cluster (RCC) method. We use these Theta values to estimate the quadrupole shift that can be measured in our proposed ion trap experiment.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S IOP Publishing.
Uncontrolled Keywords:	ion-trap, frequency metrology, atomic clock, s ystematic uncertainties
Subjects:	Physics > Physics General
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	02 Jun 2017 08:13
Last Modified:	02 Jun 2017 08:13
URI:	http://npl.csircentral.net/id/eprint/2143

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