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Monday, September 28, 2015

The quantum vacuum takes shape

The device used to measure the quantum vacuum fluctuations.

The concepts of a quantum vacuum and quantum vacuum fluctuations are still not accepted by everyone. However, a group of researchers including Christopher Wilson of the Institute for Quantum Computing have found further evidence that the two concepts are a reality. Through experiments conducted at Chalmers University of Technology, the researchers were able to probe the quantum vacuum fluctuations and not only measure their strength, but also map out their shape them.

Thursday, September 24, 2015

A twist for control of orbital angular momentum of neutron waves

Although there is never more than one neutron in the interferometer at any given time, the neutron can be thought of as a pulse

An experiment by a team of researchers led from the University of Waterloo’s Institute for Quantum Computing (IQC) shows, for the first time, that a wave property of neutrons, Orbital Angular Momentum (OAM), can be controlled.

This newfound control of neutron OAM states means that researchers can now use neutron OAM beams to see inside materials that optical, x-ray or electron OAM beams can’t penetrate.

This control can help measure the magnetism, for example, in magnetic materials, as well as deeper probes of superconducting and chiral materials.

Wednesday, September 16, 2015

Scientific American, Nature, and Tor Books launch “flash fiction” competition, Quantum Shorts

Scientific American, Nature, and Tor Books announce the launch of the 2015 Quantum Shorts competition. The contest encourages readers to create quantum-themed “flash fiction”: a short story of no more than 1,000 words that is inspired by quantum physics.

Tuesday, September 8, 2015

Four Waterloo professors named Royal Society of Canada fellows

David Cory

Four professors from the University of Waterloo are among the new fellows of the Royal Society of Canada (RSC) announced today, peer-elected as the best in their field.

The fellowship of the RSC consists of individuals who have made outstanding contributions in the arts, the humanities, science, and Canadian public life.

Friday, September 4, 2015

Experiment looks to increase security in quantum communication

Set-up based on a quantum dot and a polarization-time-bin interface.

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

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