My group uses atoms to study the nature of physical laws. Our current projects mainly involve looking for physics beyond the Standard Model.

Recent work

1. What is a Schiff moment anyway? arXiv:2601.07217 (2026)
2. Collisional frequency shifts in Sr⁺ optical clocks Phys. Rev. A (2025)
3. Precision comagnetometry for T-violation searches in crystals Phys. Rev. A (2025)
4. First results from a search for axionlike dark matter using octupole-deformed nuclei in a crystal arXiv:2410.02218 (2024)
5. Measuring the nuclear magnetic quadrupole moment of optically trapped ytterbium atoms in the metastable state New J. Phys. (2024)

Selected older publications

1. Nuclear T-violation search using octupole-deformed nuclei in a crystal Phys. Rev. A (2023)
2. A measurement of the atomic hydrogen Lamb shift and the proton charge radius, Science (2019)
3. Optical frequency standards for gravitational wave detection using satellite Doppler velocimetry, New. J. Phys. (2015)
4. Order of magnitude smaller limit on the electric dipole moment of the electron, Science (2014)

Designs

Code and hardware designs developed in my group are available at github.com/vuthalab.

Diversions

Perhaps you are here for my list of content-free phrases?

Contact

Department of Physics
University of Toronto
60 St. George Street
Toronto ON M5S 1A7, Canada

Phone: +1 416 946 8503
Email: amar.vutha Ͽ utoronto.ca

'MP' is the McLennan Physics building in the downtown campus.

Support

• Natural Sciences & Engineering Research Council
• Canada Research Chairs
• John Templeton Foundation
• Alfred P. Sloan Foundation

Team

• Alek Radak
• Dr. Mingyu Fan
• Bassam Nima
• William Zheng
• Florian Brandstätter
• Ibraheem Andeejani
• Nathan Wang

Recent alumni

• Takahiro Tow, PhD
• Alissa Guissine
• Thomas Yeaman
• Kristen Cote, PhD
• Ben Dobozy
• Alison Okumura
• Angela Xiang