Toward the possibility of <sup>229</sup>Th isomeric nuclear state excitation by two-color laser field

Andreev, A. V.; Savel’ev, A. B.; Stremoukhov, S. Yu.; Shoutova, O. A.

doi:10.1051/epjconf/201922001001

Cited by 1 publication

(3 citation statements)

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“…(4) Based on the asymmetry of the 29.19 keV doublet. (5) Based on the double-difference technique like in [12,13]. (6) Based on the difference between three γ lines.…”

Section: The Special Properties Of 229m Thmentioning

confidence: 99%

“…(6) Based on the difference between three γ lines. (7) Based on the difference to the 29.19 keV excitation energy like in [412] [12], (4): [13], (5): [321], (6): [412], (7): [328] transition is thus of multipolarity M1. Based on γ -ray spectroscopy of nuclear states of higher energies, the 229m Th energy was constrained to be below 10 eV in 1990 [283] and an energy value of 3.5 ± 1.0 eV was determined in 1994 [129].…”

Section: The Special Properties Of 229m Thmentioning

confidence: 99%

“…This is in agreement with the result from [45] for the case that the bandwidth of the laser light dominates both decoherences, e.g., Γ (Γ n , Γ a , Γ c ). In 2019 a process of "nonlinear laser nuclear excitation" was proposed by Andreev et al [4] (see also [5]). In this process the atomic shell is used to generate high harmonics from short laser pulses.…”

Section: A33 Nuclear Excitation By Electron Capturementioning

confidence: 99%

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The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Wense

2020

Eur. Phys. J. A

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The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about $$10^{-19}$$ 10 - 19 has rendered a nuclear clock an interesting tool for many applications, potentially even for a re-definition of the second. The focus of the corresponding research is a nuclear transition of the $$^{229}$$ 229 Th nucleus, which possesses a uniquely low nuclear excitation energy of only $$8.12\pm 0.11$$ 8.12 ± 0.11 eV ($$152.7\pm 2.1$$ 152.7 ± 2.1 nm). This energy is sufficiently low to allow for nuclear laser spectroscopy, an inherent requirement for a nuclear clock. Recently, some significant progress toward the development of a nuclear frequency standard has been made and by today there is no doubt that a nuclear clock will become reality, most likely not even in the too far future. Here we present a comprehensive review of the current status of nuclear clock development with the objective of providing a rather complete list of literature related to the topic, which could serve as a reference for future investigations.

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“…(4) Based on the asymmetry of the 29.19 keV doublet. (5) Based on the double-difference technique like in [12,13]. (6) Based on the difference between three γ lines.…”

Section: The Special Properties Of 229m Thmentioning

confidence: 99%