Title: One-way quantum computing in superconducting circuits,
Abstract: We propose a method for the implementation of one-way quantum computing in
superconducting circuits. Measurement-based quantum computing is a universal
quantum computation paradigm in which an initial cluster-state provides the
quantum resource, while the iteration of sequential measurements and local
rotations encodes the quantum algorithm. Up to now, technical constraints have
limited a scalable approach to this quantum computing alternative. The initial
cluster state can be generated with available controlled-phase gates, while the
quantum algorithm makes use of high-fidelity readout and coherent feedforward.
With current technology, we estimate that quantum algorithms with above 20
qubits may be implemented in the path towards quantum supremacy. Moreover, we
propose an alternative initial state with properties of maximal persistence and
maximal connectedness, reducing the required resources of one-way quantum
computing protocols.