Go Back

Photo of Aephraim M. Steinberg

Aephraim M. Steinberg Physicist

Aephraim Steinberg’s interests lie in fundamental quantum-mechanical phenomena and the control and characterization of the quantum states of systems ranging from laser-cooled atoms to individual photons. His experimental program is two-pronged, using both non-classical two-photon interference and laser-cooled atoms to study: quantum information and computation, decoherence and the quantum-classical boundary, tunneling times, weak measurement and retrodiction in quantum mechanics, and the control and characterization of novel quantum states.


Fellow of the Royal Society of Canada, 2016 .

Physics World Breakthrough of the Year, 2011.

E.W.R. Steacie Memorial Fellowship, 2007.

Relevant Publications

A.M. Steinberg et al, "Measurement of the single-photon tunneling time," Phys. Rev. Lett., vol. 71, no. 5, pp. 708, Aug. 1993.



Senior Fellow Quantum Information Science


University of TorontoDepartment of Physics


PhD (Physics) University of California Berkeley

MSc (Physics) University of California Berkeley

BS Yale University



Ideas Related to Aephraim M. Steinberg

News | Quantum Information Science

Physicists discover a way to increase the resolution of microscopes and telescopes

Physicists have found a way to increase the resolution of microscopes and telescopes beyond long-accepted limitations by tapping into previously...

News | Quantum Information Science

Researchers demonstrate ‘quantum surrealism’

New research demonstrates that particles at the quantum level can in fact be seen as behaving something like billiard balls...