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August 2015

A blog written by quantum researchers for quantum researchers and those interested in their work.

The essential content of the Threshold Theorem for Fault-Tolerant Quantum Computation

The belief that quantum computation is possible in practice is founded strongly on a set of theorems that are generally called ‘the’ Threshold Theorem for Fault-Tolerant Quantum Computation. Though there is non-trivial variation between threshold theorems based on differing assumptions about the errors that will affect the quantum computer, the essential content of ‘the’ theorem is that errors can be efficiently corrected if they are small enough.

Notes from the Circus: CLEO 2015

I (far left) line up with (left to right) Patrik Rath (Karlsruhe Institute of Technology), Matin Hallaji (University of Toronto

On Wednesday, they brought in a performer on stilts to wander amongst the conference attendees. She was surrounded in rings of multi-coloured LEDs, costumed to look very much like what people thought the future would look like in the eighties. She twirled two torches which projected a United Nations-sanctioned logo for the International Year of Light, as if challenging Lady Liberty to step up her game.

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