Measurement of the 27Al+ and 87Sr absolute optical frequencies

Holly Leopardi; Kyle Beloy; Tobias Bothwell; Samuel M. Brewer; Sarah L. Bromley; Jwo Sy Chen; Scott A. Diddams; Robert J. Fasano; Youssef S. Hassan; David B. Hume; Dhruv Kedar; Colin J. Kennedy; David R. Leibrandt; Andrew D. Ludlow; William F. McGrew; William R. Milner; Daniele Nicolodi; Eric Oelker; Thomas E. Parker; John M. Robinson; Stefania Romisch; Jeff A. Sherman; Lindsay Sonderhouse; Jian Yao; Jun Ye; Xiaogang Zhang; Tara M. Fortier

doi:10.1088/1681-7575/abd040

Measurement of the ²⁷Al⁺ and ⁸⁷Sr absolute optical frequencies

Holly Leopardi, Kyle Beloy, Tobias Bothwell, Samuel M. Brewer, Sarah L. Bromley, Jwo Sy Chen, Scott A. Diddams, Robert J. Fasano, Youssef S. Hassan, David B. Hume, Dhruv Kedar, Colin J. Kennedy, David R. Leibrandt, Andrew D. Ludlow, William F. McGrew, William R. Milner, Daniele Nicolodi, Eric Oelker, Thomas E. Parker, John M. RobinsonStefania Romisch, Jeff A. Sherman, Lindsay Sonderhouse, Jian Yao, Jun Ye, Xiaogang Zhang, Tara M. Fortier

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Abstract

We perform absolute measurement of the ²⁷Al⁺ single-ion and ⁸⁷Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. Over an eight month period multiple measurements yielded the mean optical atomic transition frequencies ν_Al+ = 1 121 015 393 207 859.50(0.36) Hz and ν_Sr = 429 228 004 229 873.19(0.15) Hz, where the stated uncertainties are dominated by statistical noise and gaps in the observation interval ('dead-time' uncertainty).

Original language	English
Article number	015017
Journal	Metrologia
Volume	58
Issue number	1
DOIs	https://doi.org/10.1088/1681-7575/abd040
State	Published - Feb 2021

Keywords

Atomic clocks
Optical frequency comb
Optical measurement
Precision metrology
Secondary standards

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Leopardi, H., Beloy, K., Bothwell, T., Brewer, S. M., Bromley, S. L., Chen, J. S., Diddams, S. A., Fasano, R. J., Hassan, Y. S., Hume, D. B., Kedar, D., Kennedy, C. J., Leibrandt, D. R., Ludlow, A. D., McGrew, W. F., Milner, W. R., Nicolodi, D., Oelker, E., Parker, T. E., ... Fortier, T. M. (2021). Measurement of the ²⁷Al⁺ and ⁸⁷Sr absolute optical frequencies. Metrologia, 58(1), Article 015017. https://doi.org/10.1088/1681-7575/abd040

@article{8c92b0e46511472a9f077ec2bd1254d8,

title = "Measurement of the 27Al+ and 87Sr absolute optical frequencies",

abstract = "We perform absolute measurement of the 27Al+ single-ion and 87Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. Over an eight month period multiple measurements yielded the mean optical atomic transition frequencies νAl+ = 1 121 015 393 207 859.50(0.36) Hz and νSr = 429 228 004 229 873.19(0.15) Hz, where the stated uncertainties are dominated by statistical noise and gaps in the observation interval ('dead-time' uncertainty).",

keywords = "Atomic clocks, Optical frequency comb, Optical measurement, Precision metrology, Secondary standards",

author = "Holly Leopardi and Kyle Beloy and Tobias Bothwell and Brewer, \{Samuel M.\} and Bromley, \{Sarah L.\} and Chen, \{Jwo Sy\} and Diddams, \{Scott A.\} and Fasano, \{Robert J.\} and Hassan, \{Youssef S.\} and Hume, \{David B.\} and Dhruv Kedar and Kennedy, \{Colin J.\} and Leibrandt, \{David R.\} and Ludlow, \{Andrew D.\} and McGrew, \{William F.\} and Milner, \{William R.\} and Daniele Nicolodi and Eric Oelker and Parker, \{Thomas E.\} and Robinson, \{John M.\} and Stefania Romisch and Sherman, \{Jeff A.\} and Lindsay Sonderhouse and Jian Yao and Jun Ye and Xiaogang Zhang and Fortier, \{Tara M.\}",

note = "Publisher Copyright: {\textcopyright} 2021 BIPM \& IOP Publishing Ltd Printed in the UK",

year = "2021",

month = feb,

doi = "10.1088/1681-7575/abd040",

language = "English",

volume = "58",

journal = "Metrologia",

issn = "0026-1394",

publisher = "IOP Publishing Ltd.",

number = "1",

}

Leopardi, H, Beloy, K, Bothwell, T, Brewer, SM, Bromley, SL, Chen, JS, Diddams, SA, Fasano, RJ, Hassan, YS, Hume, DB, Kedar, D, Kennedy, CJ, Leibrandt, DR, Ludlow, AD, McGrew, WF, Milner, WR, Nicolodi, D, Oelker, E, Parker, TE, Robinson, JM, Romisch, S, Sherman, JA, Sonderhouse, L, Yao, J, Ye, J, Zhang, X & Fortier, TM 2021, 'Measurement of the ²⁷Al⁺ and ⁸⁷Sr absolute optical frequencies', Metrologia, vol. 58, no. 1, 015017. https://doi.org/10.1088/1681-7575/abd040

TY - JOUR

T1 - Measurement of the 27Al+ and 87Sr absolute optical frequencies

AU - Leopardi, Holly

AU - Beloy, Kyle

AU - Bothwell, Tobias

AU - Brewer, Samuel M.

AU - Bromley, Sarah L.

AU - Chen, Jwo Sy

AU - Diddams, Scott A.

AU - Fasano, Robert J.

AU - Hassan, Youssef S.

AU - Hume, David B.

AU - Kedar, Dhruv

AU - Kennedy, Colin J.

AU - Leibrandt, David R.

AU - Ludlow, Andrew D.

AU - McGrew, William F.

AU - Milner, William R.

AU - Nicolodi, Daniele

AU - Oelker, Eric

AU - Parker, Thomas E.

AU - Robinson, John M.

AU - Romisch, Stefania

AU - Sherman, Jeff A.

AU - Sonderhouse, Lindsay

AU - Yao, Jian

AU - Ye, Jun

AU - Zhang, Xiaogang

AU - Fortier, Tara M.

PY - 2021/2

Y1 - 2021/2

N2 - We perform absolute measurement of the 27Al+ single-ion and 87Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. Over an eight month period multiple measurements yielded the mean optical atomic transition frequencies νAl+ = 1 121 015 393 207 859.50(0.36) Hz and νSr = 429 228 004 229 873.19(0.15) Hz, where the stated uncertainties are dominated by statistical noise and gaps in the observation interval ('dead-time' uncertainty).

AB - We perform absolute measurement of the 27Al+ single-ion and 87Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. Over an eight month period multiple measurements yielded the mean optical atomic transition frequencies νAl+ = 1 121 015 393 207 859.50(0.36) Hz and νSr = 429 228 004 229 873.19(0.15) Hz, where the stated uncertainties are dominated by statistical noise and gaps in the observation interval ('dead-time' uncertainty).

KW - Atomic clocks

KW - Optical frequency comb

KW - Optical measurement

KW - Precision metrology

KW - Secondary standards

UR - https://www.scopus.com/pages/publications/85101052529

U2 - 10.1088/1681-7575/abd040

DO - 10.1088/1681-7575/abd040

M3 - Article

AN - SCOPUS:85101052529

SN - 0026-1394

VL - 58

JO - Metrologia

JF - Metrologia

IS - 1

M1 - 015017

ER -

Measurement of the ²⁷Al⁺ and ⁸⁷Sr absolute optical frequencies

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Keywords

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