1207.6131 (John Preskill)

Sufficient condition on noise correlations for scalable quantum
computing    [PDF]

John Preskill

I study the effectiveness of fault-tolerant quantum computation against correlated Hamiltonian noise, and derive a sufficient condition for scalability. Arbitrarily long quantum computations can be executed reliably provided that noise terms acting collectively on k system qubits are sufficiently weak, and decay sufficiently rapidly with increasing k and with increasing spatial separation of the qubits.

View original: http://arxiv.org/abs/1207.6131