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Realistic fast quantum gates with hot trapped ions
Marek Sasura, Andrew M. Steane
The "pushing gate" proposed by Cirac and Zoller in 2000 for quantum logic in ion traps is discussed, in which a force is used to give a controlled push to a pair of trapped ions an…
Overhead and noise threshold of fault-tolerant quantum error correction
Andrew M. Steane
Fault tolerant quantum error correction (QEC) networks are studied by a combination of numerical and approximate analytical treatments. The probability of failure of the recovery o…
Quantum computer architecture for fast entropy extraction
Andrew M. Steane
If a quantum computer is stabilized by fault-tolerant quantum error correction (QEC), then most of its resources (qubits and operations) are dedicated to the extraction of error in…
Fast fault-tolerant filtering of quantum codewords
Andrew M. Steane
The stabilization of a quantum computer by repeated error correction can be reduced almost entirely to repeated preparation of blocks of qubits in quantum codeword states. These ar…