Team Members
ZLab Team
Tanya Zelevinsky
Prof. Tanya Zelevinsky

Prof. Z graduated from MIT in physics and math, and received her physics PhD at Harvard University where her thesis work involved precise spectroscopy of helium atoms. She came to Columbia in 2008, after a few years of learning about optical lattice atomic clocks in Boulder, Colorado. She teaches various subjects such as mechanics, electromagnetism, and atomic physics, and her research interests involve precision measurements and quantum optics, particularly state-of-the-art optical spectroscopy with diatomic molecules.

Jingjing Huang
Jingjing Huang

Jingjing obtained her Master's degree from Tufts University and PhD from North Carolina State University. Her PhD study focused on engineering the Hamiltonians of degenerate quantum gases as well as studying the evolution of spin density and the emergence of spin correlations in a synthetic lattice in energy space. She joined ZLab in August of 2024 and is currently working on the molecular lattice clock experiment based on laser-cooled strontium atoms, and in particular, preparing to measure vibrational molecular isotope shifts at the highest precision.

Hanwen Gao
Hanwen Gao

Hanwen obtained his PhD in physical chemistry from Brown University, where he developed a cryogenic ion trap to produce cold molecular ions for high-resolution photoelectron spectroscopy. He joined ZLab in 2025 to extend his expertise to the field of ultracold molecules. His research focuses on laser cooling and trapping of calcium monohydride (CaH) molecules, and devising state-controlled ultracold chemistry and photochemistry experiments with this new system.

Jianhui Li
Jianhui Li

Before coming to Columbia, Jianhui studied physics at the National University of Singapore. As an undergraduate, he developed an interest in AMO physics while working on building an optical lattice of lithium atoms at the Centre for Quantum Technologies. Currently, Jianhui is excited about the potential of testing fundamental physics with molecules. He is working with the CeNTREX collaboration, situated at Argonne National Lab, looking for the electric dipole moment of the proton and hadronic CP violation effects in cold thallium fluoride molecule.

Perry Zhou
Perry Zhou

Perry completed his undergraduate degree at the University of Science and Technology of China (USTC) in 2022. During his undergrad, he worked in high-energy nuclear physics research at RHIC, then transitioned to work on searching for axion-like dark matter using nuclear magnetic resonance. The idea of testing fundamental physics with tabletop experiments motivated him to pursue precision measurements with AMO physics. At Zlab, Perry is working on the search for CP violation with cold thallium fluoride molecules. He is excited to develop the CeNTREX project and use it to look for physics beyond the Standard Model.

Benjamin Riley
Benjamin Riley

Ben completed his undergraduate degree at UC Santa Barbara in 2023, where he carried out experiments on high-precision microwave spectroscopy of molecules and the formation kinetics of water dimers. After joining ZLab at Columbia, Ben has been working on direct laser cooling of molecules. This has resulted in the first magneto-optical trap (MOT) of calcium monohydride (CaH) molecules. Ben is interested in further cooling the molecules and subsequently using AMO techniques to explore new directions in quantum chemistry and photochemistry.

Wenwei Xu
Wenwei Xu

Prior to joining ZLab, Wenwei was an undergraduate at the university of Science and Technology of China (USTC). She was always fascinated by interactions between light and matter, as well as precision measurements and searches for beyond-Standard-Model physics. As an undergrad she worked on nitrogen-vacancy (NV) centers in diamond, with a goal of searching for dark matter. As a PhD student at Columbia, Wenwei is working on a new strontium molecular clock apparatus.

Gisung Sim
Gisung Sim

Gisung completed his undergraduate degree at Pusan National University in South Korea, where he conducted quantum sensing experiments using quantum light generated from hot rubidium ensembles. As a PhD student at ZLab, he is exploring new physics with ultracold strontium molecules. His research focuses on precision tests of fundamental physics and searches for physics beyond the Standard Model. More broadly, he is interested in using controllable quantum systems to advance metrology, sensing, and ultracold chemistry.

Name Affiliation Project(s)
Brandon Iritani Columbia University Molecular clock
Jinyu Dai Columbia University Laser cooling of molecules
Qi Sun Columbia University Laser-cooled molecules
Debayan Mitra Columbia University Cooling and trapping of molecules
Carson Convery Columbia University Optical systems for molecule cooling
Antoine Nadal Ecole Normale Superieure de Lyon Cold molecules
Shuqi Liu USTC Optical systems for molecule cooling
Jin-Tai Wu USTC Optical systems for ultracold molecules
Amelie Sharples Columbia University Optical systems for molecular clock
Taylor Briggs Columbia University Optical systems for molecular clock
Christine Zhang Columbia University Molecule cooling
Dr. Mateusz Borkowski Columbia University Molecular lattice clock
Sijia Wang USTC Optical systems for molecular clock
Andrii Shypachov City College of New York Optics and lasers
Alex Glamazdin Columbia University Optics and lasers
Isaac Pope Columbia University Optical systems for molecule cooling
Dr. Emily Tiberi Columbia University Molecular lattice clock
Dr. Kon Leung Columbia University Molecular lattice clock
Sebastian Vazquez-Carson Columbia University Laser cooling of molecules
Mick Aitken Columbia University Nuclear Schiff moment measurements
Shuhan Zhang Columbia University Lasers and optics for molecule cooling
Dr. Rees McNally Columbia University Laser cooling of hydride molecules
Dr. Konrad Wenz Columbia University Tests of fundamental symmetries with cold molecules
Dr. Ivan Kozyryev Columbia University Laser cooling of molecules
Dr. Hendrik Bekker Columbia University Molecular lattice clock
Yuzhou Chai Zhejiang University Molecular lattice clock
Dr. Chih-Hsi Lee Columbia University Molecular lattice clock
Tianli Wang Ludwig Maximilian University of Munich Laser cooling of molecules
Dr. Stan Kondov Columbia University Molecular lattice clock
Edita Bytyki Columbia University Experiment software
Aaron Liberman Columbia University Atom trapping and electronics
Joanna Cohen Columbia University Optics and mentoring
Chris Liedl Ludwig Maximilian University of Munich Molecular lattice clock
Michel Sidemion Success Academy High School of the Liberal Arts Cavendish balance
Moctar Fall Success Academy High School of the Liberal Arts Cavendish balance
Dr. Geoffrey Iwata Columbia University Cryogenic molecular beam and cold molecule optical spectroscopy
Hannah Williams Imperial College London Laser cooling of molecules
Alex Sandomirsky Columbia University Electronics and high school student mentoring
Sam Quinn Columbia University Hands-on mentoring of high school students
Paul Pouyanne Ecole Normale Supérieure Thermal molecule production
Annie Block Columbia University Nested-trash-can oven
Tom Miller Columbia University Electronics
Dr. Mickey McDonald Columbia University Ultracold chemistry and molecules in optical lattices
Albert Law Columbia University Electrostatic guiding of polar molecules
Leïla Abbih Ecole Normale Supérieure de Cachan Molecular beam production and optimization
Dr. Bart McGuyer Columbia University Precision measurements with ultracold molecules
Dr. Marco Tarallo Columbia University Production and spectroscopy of cold molecules
Dr. Andrew Grier Columbia University Frequency combs for molecular spectroscopy
Fabian Sörensen Technische Universität Darmstadt Nonlinear optics
Florian Apfelbeck Ludwig-Maximilians University Ultracold molecule photodissociation
Damon Daw Columbia College Laser stabilization
Cole Rainey Columbia College Laser stabilization
Katérina Verteletsky Ecole Normale Supérieure de Cachan Molecular spectroscopy
Dr. André Loose Columbia University ATTA
Matthew Miecnikowski Columbia College Optical beam control
Noel Wan Columbia College Optics and electronics
Jiyoun (Jennifer) Ha Tenafly High School Visible optical beats
Dr. Chris Osborn Columbia University PhD thesis (2013)
Dr. Taehyun Yoon Columbia University PhD thesis (2013)
Omeed Maghzian Columbia College Experiment control software
Elijahu Ben-Michael Columbia College Molecule cooling; optics
Henry Du Hunter College High School Web design
Dr. Gael Reinaudi Columbia University Ultracold atom & molecule experiments
Dili Wang Columbia College Lasers and optics; undergraduate thesis
Clio Sleator Columbia College Experiment control software
Dr. Klejda Bega APS Blewett Scholar Laser setup and stabilization
Stéphane Bonnotte l'Institut d'Optique Thermal radiation and clocks
Camille Frapolli Ecole Normale Superieure de Cahcan Nonlinear optics
Paul Lintilhac Dartmouth College Optics; interferometry
Michael Rubin Columbia School of Engineering Magnetic field modeling
Jonathan Jove New Rochelle High School Experiment control electronics
Siqing Yu Columbia College Experiment control electronics
Raanan Cohen Columbia School of Engineering Experiment control electronics
Paul Mueller Columbia School of Engineering Laser cavity design
David Tam Columbia College Laser stabilization; temperature control
Nathan Smith Bard College Vibration measurements