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Wednesday, December 23, 2015

New questions about many queries for quantum computing

Bucket brigade scheme for a qRAM with eight memory locations.

One of the tasks that quantum computing promises is algorithmic speedups over classical computing for certain types of problems – one of which is quantum searching. To achieve this, it’s important to build a robust quantum memory, more specifically, a memory that can store information which can be addressed quantum mechanically.

Thursday, December 17, 2015

Quantum key distribution gets ready for satellite uplinks

Moving receiver mounted on a truck

University of Waterloo researchers performed a lab demonstration proving the feasibility of Quantum Key Distribution over a satellite uplink.

In an emulated environment for performing QKD, a team of researchers analyzed the impact of the optical loss that occurs between the photon source and the satellite receiver. They successfully generated a secure key using algorithms tailored for a satellite receiver, an important step towards extending the distance of ultra-secure communications.

Monday, November 23, 2015

Experiment puts 80-year entanglement debate to rest

Meyer-Scott in the lab building the measurement setup

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.

Wednesday, November 18, 2015

UN Year of Light: Waterloo grad students create light exhibit

Ian Andrews, Kent Fisher, Jean-Philippe MacLean, Michael Mazurek, Aimee Gunther, Angela Olano, and Sarah Kaiser at the opening o

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

Thursday, November 5, 2015

IQC completes project that points the way to future quantum space mission

Receiver telescope used for a future Quantum Key Distribution satellite payload

A team led by Professor Thomas Jennewein at the University of Waterloo’s Institute for Quantum Computing (IQC) has successfully completed the development of the crucial Acquisition, Pointing and Tracking (APT) fine pointing system for a future Quantum Key Distributio

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