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Title: Relativistic general-order coupled-cluster method for high-precision calculations: Application to the Al+ atomic clock
Authors: Kallay, M
Nataraj, H. S
Sahoo, B. K
Das, B. P
Visscher, Lucas
Keywords: Coupled-Cluster;High-precision Calculations;Atomic Clock
Issue Date: 22-Mar-2011
Publisher: American Physical Society
Citation: Physical Review A, Vol. 83, No. 3, Article No. 030503
Abstract: We report the implementation of a general-order relativistic coupled-cluster method for performing high-precision calculations of atomic and molecular properties. As a first application, the black-body radiation shift of the Al+ clock has been estimated precisely. The computed shift relative to the frequency of the 3s2 1S0e→3s3p 3P0o clock transition given by (-3.66±0.60)×10-18 calls for an improvement over the recent measurement with a reported result of (-9±3)×10-18 [Phys. Rev. Lett. 104, 070802 (2010)].
Description: Open Access
ISSN: 1050-2947
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Appears in Collections:IIAP Publications

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