Abstract:In the quantum optimisation setting, we build on a scheme introduced by Young et al [PRA 88, 062314, 2013], where physical qubits in multiple copies of a problem encoded into an Ising spin Hamiltonian are linked together to increase the logical system's robustness to error.
We introduce several innovations that improve the error suppression of this scheme under a special model of control noise, designed to understand how limited precision could be overcome. First, we note that only one copy needs to be… Show more
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