Inner-shell clock transition in atomic thulium with a small blackbody radiation shift

Golovizin, A. A.; Fedorova, E. S.; Tregubov, D. O.; Sukachev, Denis D.; Khabarova, K. Yu.; Сорокин, В. Н.; Kolachevsky, Nikolai N.

doi:10.1038/s41467-019-09706-9

Cited by 89 publications

(45 citation statements)

References 49 publications

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“…While we demonstrate the coherent suppression for a simple single-ion optical atomic clock system, we see wide application in high-precision spectroscopy and other clock systems [22][23][24][25][26]. The method may be particularly beneficial for optical clocks based on ions in Coulomb crystals [24,25].…”

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confidence: 88%

Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation

et al. 2020

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We introduce a scheme to coherently suppress second-rank tensor frequency shifts in atomic clocks, relying on the continuous rotation of an external magnetic field during the free atomic state evolution in a Ramsey sequence. The method retrieves the unperturbed frequency within a single interrogation cycle and is readily applicable to various atomic clock systems. For the frequency shift due to the electric quadrupole interaction, we experimentally demonstrate suppression by more than two orders of magnitude for the 2

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confidence: 88%

Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation

et al. 2020

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“…Unlike most ultracold atoms, many lanthanides exhibit fine structure splitting even in their ground state. A recent example, attracting much attention for its application to quantum metrology, is the near infra-red innershell clock transition in Thulium (Tm), which connects two fine-structure levels (J = 7/2 → J = 5/2) of the electronic ground-state [11].…”

Section: Complex Energy Spectrummentioning

confidence: 99%

New opportunites for interactions and control with ultracold lanthanides

Norcia,

Ferlaino

2021

Preprint

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Lanthanide atoms have an unusual electron configuration, with a partially filled shell of f orbitals. This leads to a set of characteristic properties that enable enhanced control over ultracold atoms and their interactions: large numbers of optical transitions with widely varying wavelengths and transition strengths, anisotropic interaction properties between atoms and with light, and a large magnetic moment and spin space present in the ground state. These features in turn enable applications ranging from narrow-line laser cooling and spin manipulation to evaporative cooling through universal dipolar scattering, to the observation of a rotonic dispersion relation, self-bound liquid-like droplets stabilized by quantum fluctuations, and supersolid states. In this short review, we describe how the unusual level structure of lanthanide atoms leads to these key features, and provide a brief and necessarily partial overview of experimental progress in this rapidly developing field.

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“…Since most atomic metals used today for laser cooling and trapping have a low saturation pressure at room temperature, a typical atomic source consists of an effusive thermal atomic beam, which is extracted from a high temperature oven. Some examples of cold atoms produced from oven source include atomic species like alkaline-earth metals (Mg 1 , Ca 2 , Sr 3 , 4 , Ba 5 , Ra 6 ), lanthanides (Eu 7 , 8 , Dy 9 , Ho 10 , Er 11 , Tm 12 , Yb 13 ), and transition-metals (Cr 14 , 15 ). Due to the high longitudinal velocity of the hot atomic beam, a Zeeman slower is often required between the oven and the final magneto-optical trap (MOT).…”

Section: Introductionmentioning

confidence: 99%

Laser-induced thermal source for cold atoms

Hsu

Larue

Kwong

et al. 2022

Sci Rep

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We demonstrate a simple and compact approach to laser cool and trap atoms based on laser-induced thermal ablation (LITA) of a pure solid granule. A rapid thermalisation of the granule leads to a fast recovery of the ultra-high vacuum condition required for a long trapping lifetime of the cold gas. We give a proof-of-concept of the technique, performing a magneto-optical trap on the 461 nm $$^1S_0\rightarrow \,^1P_1$$ 1 S 0 → 1 P 1 transition of strontium. We get up to 3.5 million of cold strontium-88 atoms with a trapping lifetime of more than 4 s. The lifetime is limited by the pressure of the strontium-free residual background vapour. We also implement an original configuration of permanent magnets to create the quadruple magnetic field of the magneto-optical trap. The LITA technique can be generalized to other atomic elements such as transition metals and lanthanide atoms, and shows a strong potential for applications in quantum technologies ranging from quantum computing to precision measurements such as outdoor inertial sensing.

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Inner-shell clock transition in atomic thulium with a small blackbody radiation shift

Cited by 89 publications

References 49 publications

Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation

Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation

New opportunites for interactions and control with ultracold lanthanides

Laser-induced thermal source for cold atoms

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