Hybrid quantum repeater with encoding

Abstract

We present an encoded hybrid quantum repeater scheme using qubit-repetition and Calderbank-Shor-Steane codes. For the case of repetition codes, we propose an explicit implementation of the quantum error-correction protocol. Moreover, we analyze the entangled-pair distribution rate for the hybrid quantum repeater with encoding and we clearly identify a triple trade-off between the efficiency of the codes, the memory decoherence time, and the local gate errors. Finally, we show that in the presence of reasonable imperfections our system can achieve rates of roughly 24 Hz per memory for 20 km repeater spacing, a final distance of 1280 km, and a final fidelity of about 0.95.

Published version. Eq.(10) revised, results unchanged

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Cited by in corpus (10)

• Photonic quantum information processing: a review
• Near-term quantum-repeater experiments with nitrogen-vacancy centers: Overcoming the limitations of direct transmission
• Ultrafast Long-Distance Quantum Communication with Static Linear Optics
• Measurement-based Quantum Communication
• Quantum repeaters and quantum key distribution: analysis of secret key rates
• Ultrafast Fault-Tolerant Long-Distance Quantum Communication with Static Linear Optics
• A hybrid quantum repeater for qudits
• Memory-assisted long-distance phase-matching quantum key distribution
• Quantum repeaters with encoding on nitrogen-vacancy center platforms
• Renormalization and small-world model of fractal quantum repeater networks