article published David Bauch author Nikolas Köcher author 79191 Nils Heinisch author 902830009-0006-0984-2097 Stefan Schumacher author 272710000-0003-4042-4951 15 department 170 department 297 department 35 department 230 department 27 department 429 department 623 department TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen project TRR 142 - Project Area C project TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen project Computing Resources Provided by the Paderborn Center for Parallel Computing project PhoQC: Photonisches Quantencomputing project <jats:p>We theoretically investigate strategies for the deterministic creation of trains of time-bin entangled photons using an individual quantum emitter described by a Λ-type electronic system. We explicitly demonstrate the theoretical generation of linear cluster states with substantial numbers of entangled photonic qubits in full microscopic numerical simulations. The underlying scheme is based on the manipulation of ground state coherences through precise optical driving. One important finding is that the most easily accessible quality metrics, the achievable rotation fidelities, fall short in assessing the actual quantum correlations of the emitted photons in the face of losses. To address this, we explicitly calculate stabilizer generator expectation values as a superior gauge for the quantum properties of the generated many-photon state. With widespread applicability in other emitter and excitation–emission schemes also, our work lays the conceptual foundations for an in-depth practical analysis of time-bin entanglement based on full numerical simulations with predictive capabilities for realistic systems and setups, including losses and imperfections. The specific results shown in the present work illustrate that with controlled minimization of losses and realistic system parameters for quantum-dot type systems, useful linear cluster states of significant lengths can be generated in the calculations, discussing the possibility of scalability for quantum information processing endeavors.</jats:p> AIP Publishing2024 eng 2835-010310.1063/5.0214197 13 Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110, AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>. @article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement in the deterministic generation of linear photonic cluster states}, volume={1}, DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110}, journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher, Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} } Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a> D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>, vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>. Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin entanglement in the deterministic generation of linear photonic cluster states. <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a> D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024). Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin Entanglement in the Deterministic Generation of Linear Photonic Cluster States.” <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>. 612512025-09-12T11:08:59Z2025-09-12T11:11:32Z