Magnetic blackbody shift of hyperfine transitions for atomic clocks

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.064101· OSTI ID:21352457

Berengut, J C; Flambaum, V V; King-Lacroix, J ^[1]

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1. School of Physics, University of New South Wales, Sydney 2052 (Australia)

We derive an expression for the magnetic blackbody shift of hyperfine transitions such as the cesium primary reference transition which defines the second. The shift is found to be a complicated function of temperature, and has a T{sup 2} dependence only in the high-temperature limit. We also calculate the shift of ground-state p{sub 1/2} hyperfine transitions which have been proposed as new atomic clock transitions. In this case interaction with the p{sub 3/2} fine-structure multiplet may be the dominant effect.

• OSTI ID: 21352457
• Journal Information: Physical Review. A, Vol. 80, Issue 6; Other Information: DOI: 10.1103/PhysRevA.80.064101; (c) 2009 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC CLOCKS
CESIUM
FINE STRUCTURE
GROUND STATES
HYPERFINE STRUCTURE
INTERACTIONS
TEMPERATURE DEPENDENCE
ALKALI METALS
ELEMENTS
ENERGY LEVELS
METALS