Hybrid-system approach to fault-tolerant quantum communication

Abstract

We present a layered hybrid-system approach to quantum communication that involves the distribution of a topological cluster state throughout a quantum network. Photon loss and other errors are suppressed by optical multiplexing and entanglement purification. The scheme is scalable to large distances, achieving an end-to-end rate of 1 kHz with around 50 qubits per node. We suggest a potentially suitable implementation of an individual node composed of erbium spins (single atom or ensemble) coupled via flux qubits to a microwave resonator, allowing for deterministic local gates, stable quantum memories, and emission of photons in the telecom regime.

8 pages, 6 figures; revised, published version

References in corpus (13)

• Topological fault-tolerance in cluster state quantum computation
• Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories
• Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout
• Experimental demonstration of a BDCZ quantum repeater node
• Giant optical Faraday rotation induced by a single electron spin in a quantum dot: Applications to entangling remote spins via a single photon
• Multiplexed Memory-Insensitive Quantum Repeaters
• Tuning the Gap of a Superconducting Flux Qubit
• System Design for a Long-Line Quantum Repeater
• Strong Coupling of a Quantum Oscillator to a Flux Qubit at its Symmetry Point
• On the role of memory errors in quantum repeaters
• High threshold distributed quantum computing with three-qubit nodes
• One-shot entanglement generation over long distances in noisy quantum networks
• Long range failure-tolerant entanglement distribution

Cited by in corpus (11)

• Photonic architecture for scalable quantum information processing in NV-diamond
• Photonic Quantum Networks formed from NV- Centers
• Minimally complex ion traps as modules for quantum communication and computing
• Strong coupling of an Er3+ doped YAlO3 crystal to a superconducting resonator
• Single Photon Level Study of Microwave Properties of Lithium Niobate at milli-Kelvin Temperatures
• Strong Coupling Between Whispering Gallery Photons and Spin States of Iron Group Impurity Ions
• Evidence of Dilute Ferromagnetism in Rare-Earth doped YAG
• Absorption-based Quantum Communication with NV centres
• Coherent control of an NV${}^{-}$ center with one adjacent 13C
• Scalable quantum information transfer between nitrogen-vacancy-center ensembles
• Electromagnetic properties of terbium gallium garnet at millikelvin temperatures and single photon energy