Hugues de Riedmatten

Hugues de Riedmatten

Institut de Ciències Fotòniques

Engineering Sciences

Since Sep. 2010, Hugues de Riedmatten is an ICREA Professor and group leader at the Institute of Photonic Sciences (ICFO) in Barcelona. He obtained a PhD in experimental quantum optics from the University of Geneva in 2003, for his work on long distance quantum communication in optical fiber. He was then postdoctoral scholar at Caltech, where he worked on initial demonstrations of quantum networks with cold cold atomic ensembles and single photons. In 2006, he was appointed senior researcher at the Univ. of Geneva, where he led the solid state quantum memory activities. He has published more than 100 articles in peer-reviewed journals and has given over 90 talks, both in international conferences and in invited seminars. He was the recipient of the Barcelona City Prize 2017, of an ERC Starting Grant and of a Frontier Research grant from the Moore Foundation. He is a member of the executive team of the Quantum Internet Alliance and an associate editor of Optica.

Research interests

Hugues de Riedmatten leads the Quantum Photonics group at ICFO. His research interests are in experimental quantum information science (QIS) and quantum optics. QIS is a research field that aims at controlling quantum coherence in light and matter in order to enable new information processing capabilities impossible with classical resources. He is interested in the quantum control of light matter interaction between single photons and atomic ensembles implemented with rare-earth doped solids and cold atomic gases. Other research lines include quantum non-linear optics with Rydberg atoms, and the detection and manipulation of single ions in the solid-state. The goal is to develop the quantum technology to implement quantum information networks and quantum repeaters. A more fundamental goal is to enable the observation of fascinating quantum effects, such as entanglement, with distant material systems and to explore the limits of quantum coherence in complex material systems.

Selected publications

- Wengerowsky S, Duranti S, Heller L & de Riedmatten H 2025, 'Quantum frequency conversion of photons with microsecond duration from the visible to the telecommunication C band', Physical review applied, 23 - 2 - 024049.
- Teller M, Plascencia S, Jachimska CS, Grandi S & de Riedmatten H 2025, 'A solid-state temporally multiplexed quantum memory array at the single-photon level', Npj quantum information, 11 - 1 - 92.
- Teller M, Plascencia S, Grandi S & de Riedmatten H 2025, 'Quantum Storage of Qubits in an Array of Independently Controllable Solid-State Quantum Memories', Physical review x, 15 - 3 - 031053.
- Feldmann L, Wengerowsky S, Das A, Duranti S, Hänni J, Grandi S & de Riedmatten H 2025, 'Cavity-Enhanced Spin-Wave Solid-State Quantum Memory', Physical review letters, 135 - 12 - 120801.
- Hänni J, Rodríguez-Moldes AE, Appas F, Wengerowsky S, Lago-Rivera D, Teller M, Grandi S & de Riedmatten H 2025, 'Heralded Entanglement of On-Demand Spin-Wave Solid-State Quantum Memories for Multiplexed Quantum Network Links', Physical review x, 15 - 4 - 041003.
- Cussenot P, Grivet B, Feldmann L, Wengerowsky S, Lanyon BP, Northup TE, de Riedmatten H, Sorensen AS & Sangouard N 2025, 'Uniting Quantum Processing Nodes of Cavity-Coupled Ions with Rare-Earth Quantum Repeaters Using Single-Photon Pulse Shaping Based on Atomic Frequency Comb', Physical review letters, 135 - 24 - 240803.

Selected research activities

Selected invited talks:
  • Prospects for a quantum repeater, Quantum Meets, Amsterdam. NL
  • Towards quantum repeaters with solid-state quantum nodes, SPIE Quantum Technologies, Madrid
  • Building quantum repeaters with solid-state quantum memories, QuNew, The Hague, NL
Other responsibilities (selected):
  • Executive team of European Quantum Flagship Project Quantum Internet Alliance
  • Associate Editor of Optica
  • Co-Chair of Quantum 2.0 Optica Conference
  • Member of steering committee Workshop on Quantum Repeaters and Networks
  • Member of steering committee of Rare-Earth Ion for Quantum Information Workshop