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.

5+2 pages, 4 figures

References in corpus (16)

• Quantum Computing
• Probing many-body dynamics on a 51-atom quantum simulator
• Microwave photonics with superconducting quantum circuits
• Quantum computing with trapped ions
• Fault-tolerant quantum computation with high threshold in two dimensions
• Quantum information processing with circuit quantum electrodynamics
• Quantum feedback control of a superconducting qubit: Persistent Rabi oscillations
• 10-qubit entanglement and parallel logic operations with a superconducting circuit
• High-speed linear optics quantum computing using active feed-forward
• Quantum simulation of the Klein paradox with trapped ions
• Feedback control of a solid-state qubit using high-fidelity projective measurement
• Initialization by measurement of a two-qubit superconducting circuit
• Producing cluster states in charge qubits and flux qubits
• Efficient one-step generation of large cluster states with solid-state circuits
• A scalable, high-speed measurement-based quantum computer using trapped ions
• Spin-1 models in the ultrastrong coupling regime of circuit QED

Cited by in corpus (8)

• Time-Domain Multiplexed 2-Dimensional Cluster State: Universal Quantum Computing Platform
• Tailored cluster states with high threshold under biased noise
• Possible superconductivity in brain
• Deterministic one-way logic gates on a cloud quantum computer
• Cluster state generation in one-dimensional Kitaev honeycomb model via shortcut to adiabaticity
• Physical Realization of Measurement Based Quantum Computation
• Quantum computational universality of hypergraph states with Pauli-X and Z basis measurements
• Passive verification protocol for thermal graph states