Simple loss-tolerant protocol for GHZ-state distribution in a quantum network

Abstract

Distributed quantum entanglement plays a crucial role in realizing networks that connect quantum devices. However, sharing entanglement between distant nodes by means of photons is a challenging process primary due to unavoidable losses in the linking channels. In this paper, we propose a simple loss-tolerant protocol for the Greenberger-Horne-Zeilinger state distribution. We analyze the distribution rate under feasible experimental conditions and demonstrate the advantages of rate-loss scaling with respect to direct transmission. Our protocol does not use quantum repeaters and is achievable with current quantum optics technology. The result has direct application to tasks such as conference key agreement or distributed sensing. Moreover, it reduces the requirements for implementing distributed quantum error correction codes such as the surface code.

16 pages, 16 figures

References in corpus (37)

• The Quantum Internet
• Quantum cryptography: Public key distribution and coin tossing
• Quantum information with continuous variables
• Gaussian Quantum Information
• Long-distance quantum communication with atomic ensembles and linear optics
• Fundamental Limits of Repeaterless Quantum Communications
• General Benchmarks for Quantum Repeaters
• Detecting Single Infrared Photons with 93% System Efficiency
• A quantum network of clocks
• Quantum repeaters: From quantum networks to the quantum internet
• Quantum Internet: Networking Challenges in Distributed Quantum Computing
• Fundamental rate-loss tradeoff for optical quantum key distribution
• Longer-Baseline Telescopes Using Quantum Repeaters
• Topological quantum computing with a very noisy network and local error rates approaching one percent
• Distributed Quantum Metrology and the Entangling Power of Linear Networks
• Local and Distributed Quantum Computation
• Multi-partite entanglement speeds up quantum key distribution in networks
• Optimal and Secure Measurement Protocols for Quantum Sensor Networks
• A telecom-wavelength quantum repeater node based on a trapped-ion processor
• Experimental quantum conference key agreement
• Metropolitan-scale heralded entanglement of solid-state qubits
• Measurement based entanglement under conditions of extreme photon loss
• Tools for quantum network design
• Long-distance single photon transmission from a trapped ion via quantum frequency conversion
• Quantum-Assisted Telescope Arrays
• Heisenberg-Scaling Measurement Protocol for Analytic Functions with Quantum Sensor Networks
• Bell-state measurement exceeding 50% success probability with linear optics
• Analysis of Multipartite Entanglement Distribution using a Central Quantum-Network Node
• Binary projective measurement via linear optics and photon counting
• Superconducting nanowire single-photon detector with ultralow dark count rate using cold optical filters
• Verifying multi-partite mode entanglement of W states
• Heralded distribution of single-photon path entanglement
• Multipartite entanglement outperforming bipartite entanglement under limited quantum system sizes
• Optimal Measurement of Field Properties with Quantum Sensor Networks
• Thresholds for the distributed surface code in the presence of memory decoherence
• Overcoming fundamental bounds on quantum conference key agreement
• Efficient Dicke state generation in a network of lossy channels

Cited by in corpus (5)

• Heralding Higher-Dimensional Bell and Greenberger-Horne-Zeilinger States Using Multiport Splitters
• Graph state extraction from two-dimensional cluster states
• Quantum Advantage in Distributed Sensing with Noisy Quantum Networks
• High-rate qutrit entanglement swapping with photon-number-basis
• Long-Distance Device-Independent Conference Key Agreement