Leaderboards/Advanced Frequency and Time Standards

Advanced Frequency and Time Standards

Last updated July 7, 2026

Rising Stars

New and hot

Rising Stars Researchers

1
Gabriella Agazie
University of Wisconsin–Milwaukee
2
Xin Zheng
Henan Agricultural University
3
Simone Colombo
University of Connecticut
4
Loïc Anderegg
University of Southern California
5
William J. Eckner
National Institute of Standards and Technology
6
S. A. King
Physikalisch-Technische Bundesanstalt
7
Melina Filzinger
Physikalisch-Technische Bundesanstalt
8
Emily D. Caldwell
National Institute of Standards and Technology
9
Nacer Naciri
Jet Propulsion Laboratory
10
Shuo Ma
Princeton University

Rising Stars Papers

1
Comparing Recent Pulsar Timing Array Results on the Nanohertz Stochastic Gravitational-wave Background
The Astrophysical Journal|2024
104 cit.
2
The NANOGrav 12.5 yr Data Set: Search for Gravitational Wave Memory
The Astrophysical Journal|2024
26 cit.
3
The NANOGrav 15 yr Data Set: Search for Transverse Polarization Modes in the Gravitational-wave Background
The Astrophysical Journal Letters|2024
22 cit.
4
Reducing the Instability of an Optical Lattice Clock Using Multiple Atomic Ensembles
Physical Review X|2024
15 cit.
5
The NANOGrav 12.5 yr Data Set: A Computationally Efficient Eccentric Binary Search Pipeline and Constraints on an Eccentric Supermassive Binary Candidate in 3C 66B
The Astrophysical Journal|2024
15 cit.
6
The NANOGrav 15 yr Data Set: Looking for Signs of Discreteness in the Gravitational-wave Background
The Astrophysical Journal|2024
15 cit.
7
Application of quantum-limited optical time transfer to space-based optical clock comparisons and coherent networks
APL Photonics|2024
14 cit.
8
Ultralight Dark Matter Search with Space-Time Separated Atomic Clocks and Cavities
Physical Review Letters|2025
14 cit.
9
The NANOGrav 15 yr Data Set: Running of the Spectral Index
The Astrophysical Journal Letters|2025
10 cit.
10
High-precision optical time and frequency transfer
Advances in Optics and Photonics|2025
9 cit.

Emerging Leaders

Gaining momentum

Emerging Leaders Researchers

1
Adam M. Kaufman
National Institute of Standards and Technology
2
Matthew T. Hummon
National Institute of Standards and Technology
3
Colin J. Kennedy
MIT-Harvard Center for Ultracold Atoms
4
Paul-Éric Pottie
Centre National de la Recherche Scientifique
5
R. N. Caballero
Peking University
6
Ross B. Hutson
National Institute of Standards and Technology
7
X. Zhang
Atom Computing (United States)
8
Holly Leopardi
Goddard Space Flight Center
9
A. Sophia Koepke
National Institute of Standards and Technology
10
Rui Tu
Shandong University of Science and Technology

Emerging Leaders Papers

1
Ytterbium Nuclear-Spin Qubits in an Optical Tweezer Array
Physical Review X|2022
150 cit.
2
Realizing spin squeezing with Rydberg interactions in an optical clock
Nature|2023
140 cit.
3
Long-lived Bell states in an array of optical clock qubits
Nature Physics|2022
111 cit.
4
Midcircuit Operations Using the <i>omg</i> Architecture in Neutral Atom Arrays
Physical Review X|2023
105 cit.
5
Multi-qubit gates and Schrödinger cat states in an optical clock
Nature|2024
96 cit.
6
Tweezer-programmable 2D quantum walks in a Hubbard-regime lattice
Science|2022
92 cit.
7
Audio Retrieval With Natural Language Queries: A Benchmark Study
IEEE Transactions on Multimedia|2022
74 cit.
8
An atomic boson sampler
Nature|2024
31 cit.
9
Observation of millihertz-level cooperative Lamb shifts in an optical atomic clock
Science|2024
25 cit.
10
Subrecoil Clock-Transition Laser Cooling Enabling Shallow Optical Lattice Clocks
Physical Review Letters|2022
24 cit.

Current Senior Leaders

Established & currently active

Current Senior Leaders Researchers

1
Wolfgang Ketterle
MIT-Harvard Center for Ultracold Atoms
2
Mark A. Kasevich
Stanford University
3
Jun Ye
National Institute of Standards and Technology
4
Theodor W. Hänsch
Max Planck Institute of Quantum Optics
5
Steven Chu
Stanford University
6
D. J. Wineland
National Institute of Standards and Technology
7
Hidetoshi Katori
Pioneer (Japan)
8
C. Salomon
Collège de France
9
Randall G. Hulet
Rice University
10
J-P Zendri
Istituto Nazionale di Fisica Nucleare, Sezione di Padova

Current Senior Leaders Papers

1
Opportunities and challenges for a sustainable energy future
Nature|2012
12.2k cit.
2
Observation of a single-beam gradient force optical trap for dielectric particles
Optics Letters|1986
7k cit.
3
Bose-Einstein Condensation in a Gas of Sodium Atoms
Physical Review Letters|1995
5.5k cit.
4
The path towards sustainable energy
Nature Materials|2016
4.7k cit.
5
Advanced Virgo: a second-generation interferometric gravitational wave detector
Classical and Quantum Gravity|2014
4.1k cit.
6
Evidence of Bose-Einstein Condensation in an Atomic Gas with Attractive Interactions
Physical Review Letters|1995
3.2k cit.
7
Optical frequency metrology
Nature|2002
3.1k cit.
8
Quantum dynamics of single trapped ions
Reviews of Modern Physics|2003
2.7k cit.
9
Observation of Feshbach resonances in a Bose–Einstein condensate
Nature|1998
2.1k cit.
10
A High Phase-Space-Density Gas of Polar Molecules
Science|2008
1.8k cit.

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