Hybrid Quantum Repeaters

Project funded by Swedish Research Council (Grant for positions or stipends), grant 2018-04812_VR. Participating organisations named by the source: KTH, Royal Institute of Technology. Funded amount: SEK 2,195,830, as stated by the source. Runs 2019-01-01 to 2021-08-01. Keywords: Naturvetenskap, Natural Sciences, Fysik, Physical Sciences, Atom- och molekylfysik och optik, Atom and Molecular Physics and Optics. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-05); national funding data, not CORDIS. Abstract given by the source: The need for secure data transfer in our society is stronger than ever. Secure communication requires the realization of a quantum network, in which the exchange of quantum information (qubits) between physically separate systems is protected by the laws of physics. Connecting different network nodes requires the transmission of single photons as carriers of qubits. However, propagation loss strongly limits the distance of qubit transfer.In my project Hybrid Quantum Repeaters (HyQRep) I will realize an efficient and reliable link between quantum network nodes by developing a quantum repeater. A device relying on entanglement teleportation and qubit storage to transmit data. HyQRep takes advantage of a new hybrid approach using semiconductor quantum dots to generate on-demand entangled photons for the teleportation and room-temperature atomic vapor as a quantum memory to store qubits. In HyQRep I will efficiency interface both previously independent quantum systems, which allows to combine unprecedented on-demand entangled photon-pair generation with low-noise, long qubit storage - impossible to achieve with any single quantum system.HyQRep will demonstrate that a powerful synergy emerges from hybrid quantum systems, combining the advantages of solid-state and atomic physics. My multidisciplinary approach provides all building blocks to successfully implement quantum repeaters to connect quantum nodes, bringing us one big step closer to the realization of the quantum network.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-22. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The Hybrid Quantum Repeaters project, funded by the Swedish Research Council with SEK 2,195,830, ran from January 1, 2019, to August 1, 2021, involving KTH, Royal Institute of Technology. It aimed to develop a quantum repeater for secure data transfer in quantum networks. Suggested technology pillar: communication. Generated by AI from the public source text; it may contain errors and the original source is authoritative.