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Imagine a movie showing particles in a gas moving and colliding with each other. Then when you play the movie backwards the velocity of the particles will be opposite, but their motion is still governed by the same laws of physics – we could just as well call the backwards film “forward” – there is no fundamental way to distinguish the arrow of time. This is called time-reversal symmetry.

/*-->*/ Five of Canada’s leading science outreach organizations launch Innovation150, a national program that celebrates our country’s innovative past and sparks ideas and discoveries to propel our future.

A team lead by researchers from the Institute for Quantum Computing and the Department of Physics and Astronomy at the University of Waterloo has successfully detected the presence of single photons while preserving their quantum states.

Researchers in Canada, the United States and Europe led by the National Institute of Standards and Technology in Boulder, Colorado and Institute for Quantum Computing alumnus Krister Shalm have ruled out classical theories of correlation with remarkably high precision. A group including Institute for Quantum Computing members Evan Meyer-Scott, Yanbao Zhang, Thomas Jennewein, and alumnus Deny Hamel built and performed an experiment that shows the world is not governed by local realism.

THEMUSEUM in downtown Kitchener is hosting LIGHT Illuminated, an exhibit with activities that include a race against light and laser maze.

Computer scientists, including Institute for Quantum Computing (IQC) members John Watrous and Richard Cleve have long been looking at protocols where quantum communication offers an advantage compared to the classical case. However technology hasn’t progressed as quickly, so researchers had previously been unable to implement the protocols.

Infinity – the mathematical notion of no limits. Our physical world has many limits. Yet mathematically infinity is reality.

Researchers develop first source of on-demand time-bin entangled photon pairs using quantum dot

William Slofstra returns to the University of Waterloo campus where he completed his BMath in the Departments of Pure Mathematics and Combinatorics & Optimization.