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Frequency Comparison of Two High-Accuracy <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msup> <mml:mi>Al</mml:mi> <mml:mo>+</mml:mo> </mml:msup> </mml:math> Optical Clocks

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Generation of ultrastable microwaves via optical frequency division

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Optical Clocks and Relativity

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Minimization of ion micromotion in a Paul trap

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Single-Ion Atomic Clock with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mn>3</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mrow> <mml:mn>10</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>18</mml:mn> </mml:mrow> </mml:msup> </mml:math> Systematic Uncertainty

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Cryogenic optical lattice clocks

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Frequency Ratio of Two Optical Clock Transitions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:msup><mml:mrow><mml:mi>Yb</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>171</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>and Constraints on the Time Variation of Fundamental Constants

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A clock network for geodesy and fundamental science

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Improved Limit on a Temporal Variation of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>m</mml:mi><mml:mi>p</mml:mi></mml:msub><mml:mo stretchy="false">/</mml:mo><mml:msub><mml:mi>m</mml:mi><mml:mi>e</mml:mi></mml:msub></mml:math>from Comparisons of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>Yb</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>and Cs Atomic Clocks

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Geopotential measurements with synchronously linked optical lattice clocks

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External-field shifts of the 199-Hg(+) optical frequency standard

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Comparison of Two Independent Sr Optical Clocks with 1 × 10 − 17 Stability at 10 3 s

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Sr+88 445-THz Single-Ion Reference at the 10−17 Level via Control and Cancellation of Systematic Uncertainties and Its Measurement against the SI Second

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Frequency comparison of optical lattice clocks beyond the Dick limit

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Vibration insensitive optical cavity

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Cs-Based Frequency Measurement of a Single, Trapped Ion Transition in the Visible Region of the Spectrum

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High-Accuracy Measurement of the Differential Scalar Polarizability of a Sr+88 Clock Using the Time-Dilation Effect

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Blackbody radiation shift, multipole polarizabilities, oscillator strengths, lifetimes, hyperfine constants, and excitation energies in Ca +

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A transportable strontium optical lattice clock

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Frequency Comparison of Two Ca+40 Optical Clocks with an Uncertainty at the 10−17 Level

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Noise and instability of an optical lattice clock

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Analysis of thermal radiation in ion traps for optical frequency standards

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Direct comparison of optical lattice clocks with an intercontinental baseline of 9000  km

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Sr88+ single-ion optical clock with a stability approaching the quantum projection noise limit

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A single-ion trap with minimized ion–environment interactions

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Observation of Doppler sidebands of a laser-cooled Ca + ion by using a low-temperature-operated laser diode

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Evaluation of blackbody radiation shift with temperature-associated fractional uncertainty at 10 −18 level for 40 Ca + ion optical clock

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A compact, sub-Hertz linewidth 729 nm laser for a miniaturized 40 Ca + optical clock

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On the stability of fundamental couplings in the Galaxy

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Test of general relativity by a pair of transportable optical lattice clocks

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Geodesy and metrology with a transportable optical clock

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Roadmap towards the redefinition of the second

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Optical clock technologies for global navigation satellite systems

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Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10 ⁻¹⁸ Uncertainty

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A Review of Commercial and Emerging Atomic Frequency Standards

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176 Lu + clock comparison at the 10 −18 level via correlation spectroscopy

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Towards a transportable aluminium ion quantum logic optical clock

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Towards a transportable aluminium ion quantum logic optical clock

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Optical frequency ratio of a 171Yb+ single-ion clock and a 87Sr lattice clock

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Miniaturized calcium beam optical frequency standard using fully-sealed vacuum tube with 10^−15 instability

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Single-ion, transportable optical atomic clocks

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Integrated multiple wavelength stabilization on a multi-channel cavity for a transportable optical clock

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Systematic uncertainty due to background-gas collisions in trapped-ion optical clocks

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Robust optical clock transitions in trapped ions using dynamical decoupling

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Chronometric Geodesy: Methods and Applications

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Transportable optical atomic clocks for use in out-of-the-lab environments

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Evaluating Optical Clock Performance for GNSS Positioning

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Toward a New Generation of Compact Transportable Yb+ Optical Clocks

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Demonstration of a mobile optical clock ensemble at sea

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A cold-atom Ramsey clock with a low volume physics package

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A transportable optical lattice clock at the National Time Service Center*

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Sympathetic sideband cooling of a 40 Ca + – 27 Al + pair toward a quantum logic clock

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Methods of quantum logic in ion frequency standards, quantum computers, and modern spectroscopy

Khabarova, K. Y., Zalivako, I. V., & Kolachevsky, N. (2022) · Physics-Uspekhi · doi:10.3367/ufne.2022.10.039270 · Cited by 12 · see citing works

A vibration-insensitive-cavity design holds impact of higher than $$100g$$ 100 g

Tao, B.-K., & Chen, Q. (2018) · Applied Physics B · doi:10.1007/s00340-018-7096-5 · Cited by 16 · see citing works

Investigation on the Effects of Microvibration on the Atomic Comagnetometer

Liu, C., Wei, K., Xu, Z., Tian, Y., Tang, C., Gong, D., Song, X., & Zhai, Y. (2023) · IEEE Transactions on Instrumentation and Measurement · doi:10.1109/tim.2023.3289532 · Cited by 15 · see citing works

Relativistic tidal effects on clock-comparison experiments

Qin, C.-G., Tan, Y.-J., & Shao, C.-G. (2019) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ab01ae · Cited by 15 · see citing works

Methods of quantum logic in ion frequency standards, quantum computers, and modern spectroscopy

Khabarova, K. Y., Zalivako, I. V., & Kolachevsky, N. (2022) · Uspekhi Fizicheskih Nauk · doi:10.3367/ufnr.2022.10.039270 · Cited by 15 · see citing works

A Review of Contemporary Atomic Frequency StandardsPreprint

Schmittberger, B. L., & Scherer, D. R. (2020) · arXiv (Cornell University) · doi:10.48550/arxiv.2004.09987 · Cited by 15 · see citing works

Compact ultrastable laser system for spectroscopy of 2S1/2 → 2D3/2 quadrupole transition in 171Yb+ ion

Zalivako, I. V., Semerikov, I. A., Borisenko, A. S., Aksenov, M. A., Vishnyakov, P., Sidorov, P., Semenin, N. V., Golovizin, A. A., Khabarova, K. Y., & Kolachevsky, N. (2020) · Quantum Electronics · doi:10.1070/qel17373 · Cited by 15 · see citing works

Guidelines for developing optical clocks with $10^{-18}$ fractional frequency uncertaintyPreprint

Hafiz, M. A., Ablewski, P., Al-Masoudi, A., Martínez, H. Á., Balling, P., Barwood, G. P., Benkler, E., Bober, M., Borkowski, M., Bowden, W., et al. (2019) · arXiv (Cornell University) · doi:10.15488/5553 · Cited by 22 · see citing works

Precision measurements with cold atoms and trapped ions*

Zhang, Q., Wang, Y., Zhu, C., Wang, Y., Zhang, X., Gao, K., & Zhang, W. (2020) · Chinese Physics B · doi:10.1088/1674-1056/aba9c6 · Cited by 13 · see citing works

Vibration modes of a transportable optical cavity

Xu, G., Jiao, D., Chen, L., Zhang, L., Dong, R., Liu, T., & Wang, J. (2021) · Optics Express · doi:10.1364/oe.422182 · Cited by 13 · see citing works

Recent Advances Concerning the 87Sr Optical Lattice Clock at the National Time Service Center

Wang, Y., Lu, X., Lu, B., Kong, D., & Chang, H. (2018) · Applied Sciences · doi:10.3390/app8112194 · Cited by 13 · see citing works

Improved Wavelength Measurement of 2S1/2→2P1/2 and 2D3/2→3[3/2]1/2 Transitions in Yb+

Zalivako, I. V., Semerikov, I. A., Borisenko, A. S., Smirnov, V. N., Vishnyakov, P., Aksenov, M. A., Sidorov, P., Kolachevsky, N., & Khabarova, K. Y. (2019) · Journal of Russian Laser Research · doi:10.1007/s10946-019-09814-3 · Cited by 12 · see citing works

Observation of 1S0 → 3P0 Transition of a 40Ca+ - 27Al+ Quantum Logic Clock*

Chao, S., Cui, K., Wang, S., Cao, J. Z., Shu, H.-L., & Huang, X.-R. (2019) · Chinese Physics Letters · doi:10.1088/0256-307x/36/12/120601 · Cited by 12 · see citing works

Sub-kelvin temperature management in ion traps for optical clocks

Nordmann, T., Didier, A., Doležal, M., Balling, P., Burgermeister, T., & Mehlstäubler, T. E. (2020) · Review of Scientific Instruments · doi:10.1063/5.0024693 · Cited by 11 · see citing works

A self-injection locked DBR laser for laser cooling of beryllium ions

King, S. A., Leopold, T., Thekkeppatt, P., & Schmidt, P. O. (2018) · Applied Physics B · doi:10.1007/s00340-018-7080-0 · Cited by 11 · see citing works

Spectroscopy of the quadrupole clock transition of ytterbium-171 ions for optical frequency standard development

Chepurov, S. V., Lugovoy, A. A., Prudnikov, O. N., Тайченачев, А. В., & Bagayev, S. N. (2019) · Quantum Electronics · doi:10.1070/qel16996 · Cited by 53 · see citing works

Geopotential Determination Based on Precise Point Positioning Time Comparison: A Case Study Using Simulated Observation

Cai, C., Shen, W., Shen, Z., & Xu, W. S. (2020) · IEEE Access · doi:10.1109/access.2020.3036988 · Cited by 10 · see citing works

Thermal Noise in Cubic Optical Cavities

Xu, G., Jiao, D., Chen, L., Zhang, L., Dong, R., Liu, T., & Wang, J. (2021) · Photonics · doi:10.3390/photonics8070261 · Cited by 10 · see citing works

Validating frequency transfer via interferometric fiber links for optical clock comparisons

Koke, S., Benkler, E., Kühl, A., & Grosche, G. (2021) · New Journal of Physics · doi:10.1088/1367-2630/ac21a0 · Cited by 10 · see citing works

Geopotential Difference Measurement Using Two Transportable Optical Clocks’ Frequency Comparisons

Liu, D., Wu, L. F., Xiong, C., & Bao, L. (2024) · Remote Sensing · doi:10.3390/rs16132462 · Cited by 9 · see citing works

Evaluation of blackbody radiation shift with 2 × 10−18 uncertainty at room temperature for a transportable 40Ca+ optical clock

Zhang, P., Cao, J. Z., Yuan, J., Liu, D., Yuan, Y., Wei, Y.-F., Shu, H.-L., & Huang, X.-R. (2021) · Metrologia · doi:10.1088/1681-7575/abe9c4 · Cited by 9 · see citing works

Accurate frequency and time dissemination in the optical domain

Khabarova, K. Y., Калганова, Е. С., & Kolachevsky, N. (2017) · Physics-Uspekhi · doi:10.3367/ufne.2017.05.038131 · Cited by 8 · see citing works

Compact 852 nm Faraday optical frequency standard

Wang, Z., Liu, Z., Jyoti, Shi, H., Qin, X., Guan, X., Zhang, J., Gao, Z., Shi, T., & Chen, J. (2025) · Applied Physics Letters · doi:10.1063/5.0236915 · Cited by 7 · see citing works

A compact and robust cooling laser system for an optical strontium lattice clock

Schwarz, R., Dörscher, S., Al-Masoudi, A., Vogt, S., Li, Y., & Lisdat, C. (2019) · Review of Scientific Instruments · doi:10.1063/1.5063552 · Cited by 7 · see citing works

An ion trap design for a space-deployable strontium-ion optical clock

Spampinato, A., Stacey, J., Mulholland, S., Robertson, B., Klein, H. A., Huang, G., Barwood, G. P., & Gill, P. R. (2024) · Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences · doi:10.1098/rspa.2023.0593 · Cited by 7 · see citing works

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

Piotrowski, M., Scarabel, J., Lobino, M., Streed, E. W., & Gensemer, S. D. (2020) · OSA Continuum · doi:10.1364/osac.396290 · Cited by 7 · see citing works

Quadrupole transitions and quantum gates protected by continuous dynamic decoupling

Martínez-Lahuerta, V. J., Pelzer, L., Dietze, K., Krinner, L., Schmidt, P. O., & Hammerer, K. (2023) · Quantum Science and Technology · doi:10.1088/2058-9565/ad085b · Cited by 6 · see citing works

Indigenisation of the Quantum Clock: An Indispensable Tool for Modern Technologies

De, S., & Sharma, A. (2023) · Atoms · doi:10.3390/atoms11040071 · Cited by 5 · see citing works

Coherent photo-thermal noise cancellation in a dual-wavelength optical cavity for narrow-linewidth laser frequency stabilisation

Dawel, F., Wilzewski, A., Herbers, S., Pelzer, L., Kramer, J., Hild, M. B., Dietze, K., Krinner, L., Spethmann, N., & Schmidt, P. O. (2024) · Optics Express · doi:10.1364/oe.516433 · Cited by 5 · see citing works

Prompt Frequency Stabilization of Ultra-Stable Laser via Improved Mean Shift Algorithm

Fan, L., Jiao, D., Liu, J., Chen, L., Xu, G., Zhang, L., Liu, J., Dong, R., Liu, T., & Zhang, S. (2022) · Electronics · doi:10.3390/electronics11091319 · Cited by 4 · see citing works

Frequency Calibration and Stabilization of the Cooling Laser of Ytterbium Lattice Clock with Molecular Iodine Spectroscopy

Jiang, K., Cheng, J., & He, L. (2019) · Wuhan University Journal of Natural Sciences · doi:10.1007/s11859-019-1416-4 · Cited by 4 · see citing works

Miniaturization of physics system in Sr optical clock

Fang-Jing, Z., Feng, G., Jian-xin, 韩. H., Chi-Hua, Z., Jun-Wei, M., Ye-Bing, W., Guo, Y., Zhang, S., & Hong, C. (2018) · Acta Physica Sinica · doi:10.7498/aps.67.20172584 · Cited by 4 · see citing works

40Ca+ optical clocks in China

Guan, H., Zhang, B., Zhang, H., Huang, Y., Hao, Y., Zeng, M., & Gao, K. (2021) · AVS Quantum Science · doi:10.1116/5.0056771 · Cited by 4 · see citing works

A self-reference direct-measuring scheme for precision optical frequency ratio measurement

Fang, P., Sun, H., Wang, Y., Xu, Y., & Chen, Q. (2022) · Applied Physics B · doi:10.1007/s00340-022-07794-y · Cited by 4 · see citing works

Cold atoms in space: community workshop summary and proposed road-map

Alonso, I., Alpigiani, C., Altschul, B., Araújo, H. M., Arduini, G., Arlt, J., Badurina, L., Balaž, A., Bandarupally, S., Barish, B. C., et al. (2022) · EPJ Quantum Technology · doi:10.1140/epjqt/s40507-022-00147-w · Cited by 5 · see citing works

Precision measurement with trapped ions

Ding, L., Zhang, Q., ChenHao, Z., YuXin, W., Zhang, X., & Zhang, W. (2021) · Zhongguo kexue. Wulixue Lixue Tianwenxue · doi:10.1360/sspma-2020-0476 · Cited by 3 · see citing works

Motional states of laser cooled Yb ions in an optimized radiofrequency trap

Borisenko, A., Zalivako, I. V., Semerikov, I. A., Aksenov, M. A., Khabarova, K. Y., & Kolachevsky, N. (2019) · Laser Physics · doi:10.1088/1555-6611/ab2b9e · Cited by 3 · see citing works

Investigation of the transition at a wavelength of 506 nm, intended for deep cooling of thulium atoms

Provorchenko, D. I., Tregubov, D. O., Mishin, D., Golovizin, A. A., Fedorova, E. S., Khabarova, K. Y., Сорокин, В. Н., & Kolachevsky, N. (2021) · Quantum Electronics · doi:10.1070/qel17584 · Cited by 3 · see citing works

Design optimization and precision requirements of an endcap ion trap for single-ion optical clock applications

Wang, C., Dai, S., Zuo, Y., & Fang, F. (2025) · AIP Advances · doi:10.1063/5.0271817 · Cited by 2 · see citing works

A Michelson Space Interferometer with Unequal Arms

Sazhin, M. V., Ivlev, O. A., & Milyukov, V. K. (2021) · Moscow University Physics Bulletin · doi:10.3103/s002713492201009x · Cited by 2 · see citing works

Development of Compact and Robust Physical System for Strontium Optical Lattice Clock

Chen, Y.-X., Zhou, C., Tan, W., Guo, F., Zhao, G., Xia, J. G., Meng, J., & Chang, H. (2024) · Applied Sciences · doi:10.3390/app14041551 · Cited by 2 · see citing works

Laser cooling of thulium atoms to ground vibrational state in an optical lattice

Provorchenko, D. I., Tregubov, D. O., Golovizin, A. A., & Kolachevsky, N. (2024) · Physics-Uspekhi · doi:10.3367/ufne.2024.05.039678 · Cited by 2 · see citing works

Vibration Testing to Assess the Transport Behaviour of Reference Standards and Mobile Scientific Devices

Klaus, L., Hannig, S., & Bothe, H. (2018) · Journal of Physics Conference Series · doi:10.1088/1742-6596/1065/22/222015 · Cited by 2 · see citing works

Three-Dimensional Paul Trap with High Secular Frequency for Compact Optical Clock

Semerikov, I. A., Zalivako, I. V., Borisenko, A. S., Aksenov, M. A., Vishnyakov, P., Sidorov, P., Колачевский, Н. Н., & Khabarova, K. Y. (2019) · Bulletin of the Lebedev Physics Institute · doi:10.3103/s1068335619090070 · Cited by 2 · see citing works

Optical frequency standard with a single 171Yb+ ion

Chepurov, S. V., Pavlov, N. A., Lugovoy, A. A., Bagayev, S. N., & Taichenachev, A. (2021) · Quantum Electronics · doi:10.1070/qel17578 · Cited by 2 · see citing works

Relativistic theory for time and frequency transfer through flowing media with an application to the atmosphere of Earth

Geršl, J. (2023) · Astronomy and Astrophysics · doi:10.1051/0004-6361/202345994 · Cited by 2 · see citing works

Laser cooling of thulium atoms to ground vibrational state in an optical lattice

Provorchenko, D. I., Tregubov, D. O., Golovizin, A. A., & Kolachevsky, N. (2024) · Uspekhi Fizicheskih Nauk · doi:10.3367/ufnr.2024.05.039678 · Cited by 2 · see citing works

Detecting and Compensating for Excess Ion Micromotion in the Single Ion Optical Frequency Standard

Pavlov, N. A., & Chepurov, S. V. (2022) · Bulletin of the Russian Academy of Sciences Physics · doi:10.3103/s106287382206020x · Cited by 1 · see citing works

GNSS carrier phase time and frequency comparison for gravity potential determination

Xu, W., Yan, C., & Zhang, P. (2025) · Geophysical Journal International · doi:10.1093/gji/ggaf479 · Cited by 1 · see citing works

Evaluation of systematic uncertainty for transportable 87Sr optical lattice clock

Kong, D., Guo, F., Li, T., Lu, X.-T., Wang, Y., & Chang, H. (2021) · Acta Physica Sinica · doi:10.7498/aps.70.20201204 · Cited by 1 · see citing works

Research on Shock Acceleration Limit of an Ultra-Stable Optical Cavity for Space Applications Based on the Finite Element Methodology

Xu, G., Jiao, D., Chen, L., Zhang, L., Liu, J., Dong, R., Liu, T., & Wang, J. (2021) · Crystals · doi:10.3390/cryst11080998 · Cited by 1 · see citing works

Transportable atomic clocks achieve laboratory precision

Middleton, C. (2020) · Physics Today · doi:10.1063/pt.3.4496 · Cited by 1 · see citing works

Quadrupole transitions and quantum gates protected by continuous dynamic decouplingPreprint

Martínez-Lahuerta, V. J., Pelzer, L., Dietze, K., Krinner, L., Schmidt, P. O., & Hammerer, K. (2023) · arXiv (Cornell University) · doi:10.15488/17258 · Cited by 1 · see citing works

Clock transition excitation efficiency determination using an additional short clock π-pulse

Provorchenko, D. I., Mishin, D., Fedorova, E. S., Tregubov, D. O., Golovizin, A. A., Сорокин, В. Н., Khabarova, K. Y., & Kolachevsky, N. (2020) · Journal of Physics Conference Series · doi:10.1088/1742-6596/1692/1/012003

Beyond the Present SI : Optical Clocks and Quantum Radiometry

Göbel, E. E., & Siegner, U. (2019) · Wiley eBooks · doi:10.1002/9783527814480.ch9

Application of Velocity Grating Spectrum in Calcium-beam Optical Clock

Pan, D., Shang, H., Liu, T., Xiumei, 王. W., Shi, T., & Chen, J. (2022) · Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) · doi:10.1109/eftf/ifcs54560.2022.9850712

Erratum: “Sub-kelvin temperature management in ion traps for optical clocks” [Rev. Sci. Instrum. 91, 111301 (2020)]

Nordmann, T., Didier, A., Doležal, M., Balling, P., Burgermeister, T., & Mehlstäubler, T. E. (2023) · Review of Scientific Instruments · doi:10.1063/5.0160415

Dissemination of Optical Frequency for Future Telecom Networks and Applications

Rajagopal, L., Lord, A., Gilson, M., & Singh, Y. (2023) · Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) · doi:10.1109/eftf/ifcs57587.2023.10272108

Preliminary characterization of a surface electrode Paul trap for frequency metrology

Madunic, J., Groult, L., Achi, B., Lauprêtre, T., Boudrias, A., Roset, P., Soumann, V., Kersalé, Y., Hafiz, M. A., & Lacroûte, C. (2024) · Journal of Physics Conference Series · doi:10.1088/1742-6596/2889/1/012013

Design of a Board-Level Integrated Multi-Channel Radio Frequency Source for the Transportable 40Ca+ Ion Optical Clock

Wang, B., Yang, Y., Zhang, H., Hu, R., Mao, H., Huang, Y., Gao, K., & Guan, H. (2025) · Sensors · doi:10.3390/s25041044

Setup and Characterization of a Fiber Brillouin Amplifier Module for Optical Frequency Transfer Over Interferometric Fiber Links

Kühl, A., Koke, S., Koczwara, A., Waterholter, T., & Grosche, G. (2025) · Annalen der Physik · doi:10.1002/andp.202400414

30cm超稳腔的振动、热分析及稳定度评估

GUO, 郭. C.-Q., JIANG, 江. Z.-W., WANG, 王. B., ZHU, 朱. Q., & Xiong, Z.-X. (2023) · Acta Sinica Quantum Optica · doi:10.3788/jqo20232904.0202

Local time scale upgrade with a transportable optical clock

Yuan, Y., Cao, J., Yuan, J., Wang, D., Fang, P., Chen, Q., Cao, S., Wang, X., Chao, S., Shu, H.-L., et al. (2026) · Metrologia · doi:10.1088/1681-7575/ae46a4

A compact, transportable optical clock with 1×10−17 uncertainty and its absolute frequency measurement

Cao, J. Z., Yuan, J., Wang, S., Zhang, P., Yuan, Y., Liu, D., Cui, K., Chao, S., Shu, H., Lin, Y., et al. (2022) · Applied Physics Letters · doi:10.1063/5.0079432 · Cited by 22 · see citing works

Towards a transportable Ca$^+$ optical clock with a systematic uncertainty of $4.8\times 10^{-18}$Preprint

Zeng, M., Huang, Y. T., Zhang, B., Hao, Y., 马, Z. 子. M., Hu, R., Zhang, H., Chen, Z., Wang, M., Guan, H., et al. (2023) · arXiv (Cornell University) · doi:10.48550/arxiv.2303.07566

Toward a Transportable <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:msup><mml:mi>Ca</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math> Optical Clock with a Systematic Uncertainty of 4.8 × 10 ⁻¹⁸

Zeng, M., Huang, Y., Zhang, B., Hao, Y., Ma, Z., Hu, R., Zhang, H., Chen, Z., Wang, M., Guan, H., et al. (2023) · Physical Review Applied · doi:10.1103/physrevapplied.19.064004 · Cited by 23 · see citing works

Opticlock: Transportable and easy-to-operate optical single-ion clock

Stuhler, J., Abdel Hafiz, M., Arar, B., Bawamia, A., Bergner, K., Biethahn, M., Brakhane, S., Didier, A., Fortágh, J., Halder, M., et al. (2021) · Measurement: Sensors · doi:10.1016/j.measen.2021.100264 · Cited by 38 · see citing works

Liquid-Nitrogen-Cooled 40 Ca + Ion Optical Clock with a Systematic Uncertainty of 4.4 × 10 − 19

张, B.-L. 宝. Z., Ma, Z., Huang, Y., Han, H.-L., Hu, R.-M., Wang, Y., Zhang, H.-Q., Tang, L.-Y., Shi, T.-Y., Hua, G., et al. (2025) · Physical Review Letters · doi:10.1103/vngc-c1xv · Cited by 13 · see citing works