Research

My group uses atoms and molecules to develop new tools for precision measurements. Our current research projects involve optical atomic clocks and molecular ion spectroscopy.

I am involved in the EDM3 and PolyEDM collaborations.

Recent work

  1. Improved estimate of the collisional frequency shift in Al+ optical clocks, arXiv (2019)
  2. Magic polarization for light shift cancellation in two-photon optical clocks, arXiv (2018)
  3. Doppler and collisional frequency shifts in trapped-atom clocks, arXiv (2018)
  4. Orientation-dependent hyperfine structure of polar molecules in a rare-gas matrix, Phys. Rev. A (2018)
  5. Laser frequency stabilization using a transfer interferometer, Rev. Sci. Intr. (2018)
  6. Oriented polar molecules for electron EDM measurements, Atoms (2018)
  7. Displacement operators: the classical face of their quantum phase, Eur. J. Phys. (2018)
  8. A compact external-cavity diode laser, using feedback from an optical fiber, Rev. Sci. Instr. (2017)
  9. Collisional frequency shift of a trapped-ion optical clock, Phys. Rev. A (2017)
  10. Broadband low-noise photodetector for Pound-Drever-Hall laser stabilization, Rev. Sci. Instr. (2016)
  11. Frequency-offset separated oscillatory fields, Phys. Rev. A (2015)
  12. Optical frequency standards for gravitational wave detection using satellite Doppler velocimetry, New. J. Phys. (2015)

Designs

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

Pythagon is an older Python blog that I update sporadically.

Teaching

I teach the following courses at UofT: Previous courses:

Contact

MP 033 (lab), MP 1121 (office)
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, located in UofT's downtown campus.

Support

USRA summer research positions available

Please get in touch with me if you are interested in a 2019 summer USRA project. Here are the projects available in my group this summer.

Team

  • Shira Jackson
  • Nishant Bhatt
  • Mohit Verma
  • Luca Talamo
  • Kristen Cote
  • Edward Dacanay
  • Yvette DeSereville
  • Henry Vu
  • Lucy Ma

Alumni

  • Jack Davis → U Waterloo
  • Hiromitsu Sawaoka → Harvard
  • Wesley Cassidy → U British Columbia
  • Dr. Shreyas Potnis → Thalmic Labs
  • Dr. Graham Edge → JW Player
  • Jenny Wu → U Colorado