Journal
PHYSICAL REVIEW X
Volume 2, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.2.041003
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Funding
- Australian Research Council Centre of Excellence for Quantum Computation and Communication Technology [CE110001027]
- U.S. National Security Agency
- U.S. Army Research Office [W911NF-08-1-0527]
- Intelligence Advanced Research Projects Activity (IARPA) via the Department of Interior National Business Center [D11PC20166]
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Many quantum systems are being investigated in the hope of building a large-scale quantum computer. All of these systems suffer from decoherence, resulting in errors during the execution of quantum gates. Quantum error correction enables reliable quantum computation given unreliable hardware. Unoptimized topological quantum error correction (TQEC), while still effective, performs very suboptimally, especially at low error rates. Hand optimizing the classical processing associated with a TQEC scheme for a specific system to achieve better error tolerance can be extremely laborious. We describe a tool, AUTOTUNE, capable of performing this optimization automatically, and give two highly distinct examples of its use and extreme outperformance of unoptimized TQEC. AUTOTUNE is designed to facilitate the precise study of real hardware running TQEC, with every quantum gate having a realistic, physics-based error model.
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