Navigation Links
U of Toronto experiment named top breakthrough of 2011 by Physics World

Aephraim Steinberg and colleagues at the Centre for Quantum Information and Quantum Control at the University of Toronto had the top physics breakthrough of the year according to Physics World magazine.

Steinberg led an international team in applying a modern measurement technique to the historical two-slit interferometer experiment in which a beam of light shone through two slits results in an interference pattern on a screen behind. That famous experiment and the 1927 debates between Niels Bohr and Albert Einstein, seemed to establish that you could not watch a particle go through one of two slits without destroying the interference effect: you had to choose which phenomenon to look for. Thus the quantum mechanics quandary: how can we know reality if we cannot measure it without distorting it?

With their new experiment, Steinberg's group did what the physics textbooks said was impossible. They succeeded in experimentally reconstructing full trajectories which provide a description of how light particles move through the two slits and form an interference pattern. Their description of the experiment was published in Science and resulted in coverage by the world's science media, including a feature in Physics World.

"By applying a modern measurement technique to the historic experiment, we were able to observe the average particle trajectories undergoing wave-like interference, which is the first observation of its kind. This result should contribute to the ongoing debate over the various interpretations of quantum theory," said Steinberg. "It shows that long-neglected questions about the different types of measurement possible in quantum mechanics can finally be addressed in the lab, and weak measurements such as the sort we used in this work may prove crucial in studying all sorts of new phenomena."

With regards to the being named top breakthrough of the year, Steinberg said, "When I was a graduate student, I told a mentor of mine that I was perplexed and fascinated by quantum mechanics and wished to spend my career studying it. He nodded and replied, 'That's all right in a young physicist hopefully you'll grow out of it.' So what pleases me most about this honour is how much times have changed. Physics World is recognizing the study of the foundations of quantum mechanics as a respectable, even important endeavour. I hope that lifting taboos about what questions one can still ask will lead to continued discoveries about the implications of quantum mechanics and perhaps in the long term even new applications, as has been the case in the realm of quantum information processing."

Contact: Kim Luke
University of Toronto

Related biology technology :

1. GeneNews rolls out ColonSentry(TM) test in additional Toronto area labs
2. Cytopia Merger with Toronto-based YM BioSciences Inc.
3. French Ambassador for International Investment to Visit Toronto December 11
4. The iBridge Network Adds Torontos University Health Network as First Canadian Partner
5. University of Toronto chemists make breakthrough in nanoscience research
6. Intel Corporation acquires Toronto start-up CognoVision
7. Scientists from Toronto and Helsinki discover genetic abnormalities after creation of stem cells
8. University of Toronto chemistry technology promises more effective prescription drug therapies
9. U of Toronto to award quantum mechanics prize to renowned physicist Sandu Popescu
10. University of Toronto researchers create worlds most efficient flexible OLED on plastic
11. University of Toronto engineers solve energy puzzle
Post Your Comments:
(Date:6/27/2016)... June 27, 2016  Sequenom, Inc. (NASDAQ: ... healthier lives through the development of innovative products and ... the United States denied its petition ... claims of Sequenom,s U.S. Patent No. 6,258,540 (",540 Patent") ... established by the Supreme Court,s Mayo Collaborative Services v. ...
(Date:6/27/2016)... Chapel Hill, N.C. (PRWEB) , ... June 27, ... ... of U.S. commercial operations for Amgen, will join the faculty of the ... will serve as adjunct professor of strategy and entrepreneurship at UNC Kenan-Flagler, with ...
(Date:6/24/2016)... SAN DIEGO , June 24, 2016 /PRNewswire/ ... that more sensitively detects cancers susceptible to PARP ... individual circulating tumor cells (CTCs). The new test ... of HRD-targeted therapeutics in multiple cancer types. ... therapies targeting DNA damage response pathways, including PARP, ...
(Date:6/23/2016)... Wausau, WI (PRWEB) , ... June 23, 2016 ... ... probiotic supplements, is pleased to announce the launch of their brand, UP4™ Probiotics, ... supplements for over 35 years, is proud to add Target to its list ...
Breaking Biology Technology:
(Date:5/3/2016)... , May 3, 2016  Neurotechnology, a provider ... MegaMatcher Automated Biometric Identification System (ABIS) , ... multi-biometric projects. MegaMatcher ABIS can process multiple complex ... any combination of fingerprint, face or iris biometrics. ... SDK and MegaMatcher Accelerator , which ...
(Date:4/28/2016)... 2016 First quarter 2016:   ... with the first quarter of 2015 The gross margin ... (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) , ... unchanged, SEK 7,000-8,500 M. The operating margin for 2016 ...
(Date:4/26/2016)... , April 27, 2016 ... the  "Global Multi-modal Biometrics Market 2016-2020"  report to ... ) , The analysts forecast the ... CAGR of 15.49% during the period 2016-2020.  ... number of sectors such as the healthcare, BFSI, ...
Breaking Biology News(10 mins):