Studies of thorium and ytterbium ion trap loading from laser ablation for gravity monitoring with nuclear clocks

Piotrowski, M.; Scarabel, Jordan; Lobino, Mirko; Streed, Erik; Gensemer, Stephen

doi:10.1364/osac.396290

Cited by 6 publications

(5 citation statements)

References 60 publications

(73 reference statements)

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“…One may hope, that a more accurate clock would push this limit even further and that at the envisaged accuracy of 10 −19 for a nuclear optical clock, geodesy at the 1 mm would be achievable [Piotrowski 2016, Piotrowski 2020]. Even practical applications were proposed, for example, in the fields of earthquake prediction and the search for natural resources [Safronova 2016].…”

Section: B Chronometric Geodesymentioning

confidence: 99%

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

von der Wense,

Seiferle

2020

Preprint

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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 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 Th nucleus, which possesses a uniquely low nuclear excitation energy of only 8.12 ± 0.11 eV (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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Section: B Chronometric Geodesymentioning

confidence: 99%

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

von der Wense,

Seiferle

2020

Preprint

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“…Pulsed laser ablation provides a cleaner way of generating neutral atoms and even atomic ions directly [18][19][20][21][22][23][24][25][26]. It usually utilizes a focused nanosecond or shorter laser pulse to heat a target material locally and remove tiny amount of constituent elements, which are thrown out into surrounding space.…”

Section: Introductionmentioning

confidence: 99%

“…So far, pulsed laser ablation is implemented in loading ions such as 40 Ca + [22], 9 Be + [23], 88 Sr + [24], 174 Yb + [25] and other ions [18,19] mostly using a Q-switched YAG laser or its high harmonics. The probability of single-ion loading is concerned in [24,25], where it amounts only less than 20% [24] and about 50% [25] where ablated atomic ions are directly loaded into the trap in the former and the latter suffers from the events that two or more ions are simultaneously loaded.…”

Section: Introductionmentioning

confidence: 99%

Deterministic loading of a single strontium ion into a surface electrode trap using pulsed laser ablation

Osada

Noguchi

2022

J. Phys. Commun.

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Trapped-ion quantum technologies have been developed for decades toward applications such as precision measurement, quantum communication and quantum computation. Coherent manipulation of ions' oscillatory motions in an ion trap is important for quantum information processing by ions, however, unwanted decoherence caused by fluctuating electric-field environment often hinders stable and high-fidelity operations.. One way to avoid this is to adopt pulsed laser ablation for ion loading, a loading method with significantly reduced pollution and heat production. Despite the usefulness of the ablation loading such as the compatibility with cryogenic environment, randomness of the number of loaded ions is still problematic in realistic applications where definite number of ions are preferably loaded with high probability. %The ablation loading is proven to be useful, being even compatible with cryogenic environment, except for the randomness of the number of loaded ions. In this paper, we demonstrate an efficient loading of a single strontium ion into a surface electrode trap generated by laser ablation and successive photoionization. The probability of single-ion loading into a surface electrode trap is measured to be 82\,\%, and such a deterministic single-ion loading allows for loading ions into the trap one-by-one. Our results open up a way to develop more functional ion-trap quantum devices by the clean, stable, and deterministic ion loading.

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“…Pulsed laser ablation provides a cleaner way of generating neutral atoms and even atomic ions directly [16][17][18][19][20][21][22][23][24]. It usually utilizes a focused nanosecond or shorter laser pulse to heat a target material locally and remove tiny amount of constituent elements, which are thrown * alto@g.ecc.u-tokyo.ac.jp out into surrounding space.…”

Section: Introductionmentioning

confidence: 99%

“…So far, pulsed laser ablation is implemented in loading ions such as 40 Ca + [20], 9 Be + [21], 88 Sr + [22], 174 Yb + [23] and other ions [16,17] mostly using a Q-switched YAG laser or its high harmonics. The probability of single-ion loading is concerned in Refs.…”

Section: Introductionmentioning

confidence: 99%

Deterministic loading of a single strontium ion into a surface electrode trap using pulsed laser ablation

Osada¹,

Noguchi²

2021

Preprint

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Trapped-ion quantum technologies have been developed for decades toward applications such as precision measurement, quantum communication and quantum computation. Coherent manipulation of ions' oscillatory motions in an ion trap is important for quantum information processing by ions, however, unwanted decoherence caused by fluctuating electric-field environment often hinders stable and high-fidelity operations.. One way to avoid this is to adopt pulsed laser ablation for ion loading, a loading method with significantly reduced pollution and heat production. Despite the usefulness of the ablation loading such as the compatibility with cryogenic environment, randomness of the number of loaded ions is still problematic in realistic applications where definite number of ions are preferably loaded with high probability. In this paper, we demonstrate an efficient loading of a single strontium ion into a surface electrode trap generated by laser ablation and successive photoionization. The probability of single-ion loading into a surface electrode trap is measured to be 82 %, and such a deterministic single-ion loading allows for loading ions into the trap one-by-one. Our results open up a way to develop more functional ion-trap quantum devices by the clean, stable, and deterministic ion loading.

show abstract

Studies of thorium and ytterbium ion trap loading from laser ablation for gravity monitoring with nuclear clocks

Cited by 6 publications

References 60 publications

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

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

Deterministic loading of a single strontium ion into a surface electrode trap using pulsed laser ablation

Deterministic loading of a single strontium ion into a surface electrode trap using pulsed laser ablation

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