Optical transitions in highly-charged californium ions with high sensitivity to variation of the fine-structure constant

Abstract

We study electronic transitions in highly-charged Cf ions that are within the frequency range of optical lasers and have very high sensitivity to potential variations in the fine-structure constant, alpha. The transitions are in the optical despite the large ionisation energies because they lie on the level-crossing of the 5f and 6p valence orbitals in the thallium isoelectronic sequence. Cf16+ is a particularly rich ion, having several narrow lines with properties that minimize certain systematic effects. Cf16+ has very large nuclear charge and large ionisation energy, resulting in the largest alpha-sensitivity seen in atomic systems. The lines include positive and negative shifters.

References in corpus (5)

• Spatial variation in the fine-structure constant -- new results from VLT/UVES
• Enhanced laboratory sensitivity to variation of the fine-structure constant using highly-charged ions
• Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
• Limit on the Temporal Variation of the Fine-Structure Constant Using Atomic Dysprosium
• Relativistic corrections to transition frequencies of Ag I, Dy I, Ho I, Yb II, Yb III, Au I and Hg II and search for variation of the fine structure constant

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