Protocol for generation of high-dimensional entanglement from an array of non-interacting photon emitters

Abstract

Encoding high-dimensional quantum information into single photons can provide a variety of benefits for quantum technologies, such as improved noise resilience. However, the efficient generation of on-demand, high-dimensional entanglement was thought to be out of reach for current and near-future photonic quantum technologies. We present a protocol for the near-deterministic generation of $N$-photon, $d$-dimensional photonic Greenberger-Horne-Zeilinger (GHZ) states using an array of $d$ non-interacting single-photon emitters. We analyse the impact on performance of common sources of error for quantum emitters, such as photon spectral distinguishability and temporal mismatch, and find they are readily correctable with time-resolved detection to yield high fidelity GHZ states of multiple qudits. When applied to a quantum key distribution scenario, our protocol exhibits improved loss tolerance and key rates when increasing the dimensionality beyond binary encodings.

arXiv comment15 pages, 6 figures

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Cited by in corpus (10)

• Entanglement distribution with minimal memory requirements using time-bin photonic qudits
• A Spin-Optical Quantum Computing Architecture
• Dissipative stabilization of high-dimensional GHZ states for neutral atoms
• Generating Greenberger-Horne-Zeilinger states using multiport splitters
• The power of qutrits for non-adaptive measurement-based quantum computing
• Efficient High-Dimensional Entangled State Analyzer with Linear Optics
• Exponentially Enhanced Scheme for the Heralded Qudit GHZ State in Linear Optics
• Heralding Higher-Dimensional Bell and Greenberger-Horne-Zeilinger States Using Multiport Splitters
• Linear-optical fusion boosted by high-dimensional entanglement
• Proposal for the complete high-dimensional Greenberger-Horne-Zeilinger state measurement