Real-time heralded non-Gaussian teleportation resource-state generator

• URL: http://arxiv.org/abs/2512.08429v1
• Date: Tue, 09 Dec 2025 09:58:21 GMT
• Title: Real-time heralded non-Gaussian teleportation resource-state generator
• Authors: Joseph C. Chapman, Yanbao Zhang, Joseph M. Lukens, Alberto M. Marino, Eugene Dumitrescu, Yan Wang, Nicholas A. Peters,
• Abstract summary: We experimentally demonstrate a heralded two-mode resource state for non-Gaussian teleportation capable of real-time use.<n>Real-time use is enabled by a photon-subtraction orchestrator system performing live coincidence detection and outputting low-jitter and low-latency heralding signals.
• Score: 4.130915708220859
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum teleportation is a fundamental quantum communications primitive that requires an entangled resource state. In the continuous-variable regime, non-Gaussian entangled resources have been shown theoretically to improve teleportation fidelity compared to Gaussian squeezed vacuum. We experimentally demonstrate a heralded two-mode resource state for non-Gaussian teleportation capable of real-time use. We characterize this state with two-mode homodyne tomography showing it has fidelity $F=0.973\pm 0.005$ with the expected resource state. Real-time use is enabled by a photon-subtraction orchestrator system performing live coincidence detection and outputting low-jitter and low-latency heralding signals. Live collection of real-time quadrature measurements of photon-subtracted states is enabled by the development of a synchronized homodyne detection server where the orchestrator system queries to collect the real-time quadrature samples corresponding to the heralded state. These results demonstrate significant advancement in enabling the use of heralded non-Gaussian states in quantum networking protocols, especially in the context of quantum repeaters, non-Gaussian quantum sensing and measurement-based quantum computing.

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