Quantum leap

 
Published: Thursday 30 April 1998

Quantum computers have always thrilled scientists as these could break unbreakable codes. Though not practically feasible yet, they are useful tools to explore the theoretical limits of computation. E Knill, R Laflamme and W Zurek have recently built a fault-tolerant quantum computer, that operates reliably provided the components operate within specified tolerance levels. This has exciting implications for further development of quantum computers since building fault-tolerant systems will be an essential prerequisite for realising the immense potential of quantum computers.

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