Hybrid, solid state light-matter interface enabled by optical microscopy at Millikelvin temperatures

Operation co-funded by EU cohesion policy (European Regional Development Fund (ERDF)) under the programme Baden-Württemberg - ERDF (2014DE16RFOP001), managing authority: Ministerium für Ländlichen Raum und Verbraucherschutz, Referat 40 EFRE. Beneficiary: Universität Ulm. Location: Ulm (NUTS DE144); Germany. Budget: total eligible expenditure EUR 800,000, as stated by the source. Runs 2017-11-27 to 2019-06-30. Source: Kohesio, EU cohesion policy projects managed by national and regional authorities (not CORDIS); selected because its summary names quantum technology. Summary from Kohesio (English machine translation by the source): Quantum information processing has made huge progress in recent decades. Thanks to exceptional controllability of the quantum states of spins of individual color centers in diamond and superconducting qubits, these approaches are leading technologies of solid-state-based quantum computing. Isolated spins in diamonds only weakly couple to the environment and show long coherence times. Nanometer accuracy is required to integrate individual atoms into quantum registers on a large scale. Registers of superconducting qubits are easier to realise, but their macroscopic nature leads to shorter relaxation times. Therefore, hybrid approaches from superconducting qubits and diamond-based spin qubits are attractive for scalable approaches. A linking of long-lasting qubits to optical photons allows entanglement over long distances. Here we realise a link between quantum states of optical photons, spins in diamonds and superconducting qubits.

Original source.

Source: Kohesio (EU cohesion policy projects), European Commission, Directorate-General for Regional and Urban Policy (DG REGIO). Retrieved 2026-10-21. Licence: CC0 1.0 (Cohesion Open Data Platform, dataset 2014-2020 Kohesio projects). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: public domain dedication (CC0 1.0).

AI-assisted summary: The project titled "Hybrid, solid state light-matter interface enabled by optical microscopy at Millikelvin temperatures" was co-funded by the EU and managed by Universität Ulm, with a budget of EUR 800,000, running from November 2017 to June 2019. Suggested technology pillar: computing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.