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Researchers analyze how surface codes can protect quantum memory

Oct 24, 2001

Eric Dennis, Alexei Kitaev, Andrew Landahl and John Preskill develop error-recovery protocols for surface codes. Under specified noise and control assumptions, larger codes can protect information increasingly well below an error threshold.

Why it matters

The analysis connects topological codes to a practical architecture using local operations on a grid, a central route toward fault-tolerant quantum computers.

Eric Dennis · Alexei Kitaev · Andrew Landahl · John Preskill · Caltech

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Related

• Alexei Kitaev proposes the toric code and topological quantum computing (Jul 9, 1997)
• Threshold theorem shows noisy quantum computers can still compute reliably (Oct 1996)