lifetime of qubits tagged posts

Trapped Ytterbium ions were used as one of the most advanced laboratory quantum systems for this study. Professor Biercuk’s research laboratories are now located in the Sydney Nanoscience Hub, after six years as a visiting scientist at the National Measurement Institute.
Credit: University of Sydney

What if big data could help you see the future and prevent your mobile phone from breaking before it happened? Scientists at the University of Sydney have demonstrated the ability to “see” the future of quantum systems, and used that knowledge to preempt their demise, in a major achievement that could help bring the strange and powerful world of quantum technology closer to reality...

Illustration of the filtering of unwanted quasiparticles (red spheres) from a stream of superconducting electron pairs (blue spheres) using a microwave-driven pump. Credit: Copyright Philip Krantz, Krantz NanoArt

An international team has succeeded in making further improvements to the lifetime of superconducting quantum circuits. An important prerequisite for the realization of high-performance quantum computers is that the stored data should remain intact for as long as possible. Researchers have developed and tested a technique that removes unpaired electrons from the circuits. These are known to shorten the qubit lifetime (to be published online by the journal Science today.

Superconducting circuits belong to the most promising candidates for implementing quantum bits, ie qubits, with ...