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. Robinson

Stefania Romisch, Jeff A. Sherman, Lindsay Sonderhouse, Jian Yao, Jun Ye, Xiaogang Zhang, Tara M. Fortier

Earth Observation and Data Services

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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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10.1088/1681-7575/abd040

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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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