Blog

Welcome Fadri Grünenfelder!

Sun, 01 Mar 2026 13:53:00 +0000

Fadri has joined the Quantum Technologies team for postdoctoral research on Superconducting Nanowire Single Photon Detectors. He graduated under Prof. Hugo Zbinden with his work on Quantum Key Distribution. Then he went to Vigo in Spain to contribute to the founding of a lab at the Vigo Quantum Communication Center as a postdoctoral researcher. There guided three PhD students working on Quantum Random Number Generators and Quantum Key Distribution.

Welcome Viros Sriskaran!

Sun, 01 Mar 2026 13:51:00 +0000

Viros Sriskaran joined the Quantum Technologies team to work on ASICs for superconducting nanowire single-photon detectors. He holds a Master of Science (M.Sc.) in Micro- and Nanotechnologies for Integrated Systems, a joint program offered by three universities: Politecnico di Torino, Grenoble INP, and École Polytechnique Fédérale de Lausanne (EPFL). He completed his PhD at EPFL in Lausanne. He worked for eight years at CERN on the design and implementation of analog circuits for the Medipix and Timepix chips.

Welcome Viros Sriskaran!

Sun, 01 Mar 2026 13:39:00 +0000

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Welcome Eva Raffalt!

Thu, 12 Feb 2026 11:33:00 +0000

Eva has joined the Quantum Technology team for a PhD, in partnership with RhySearch. She received her Master’s in Nanotechnology from the Leibniz University Hanover and previously worked in the Cluster of Excellence PhoenixD on optical micro platforms and Quantum Key Distribution. She then moved to the startup Diatope, where she developed NV Centers in diamond for quantum applications such as quantum sensors and quantum computers.

Welcome Florian Sander

Wed, 14 Jan 2026 10:57:00 +0000

Florian has joined the Quantum Technologies team for a PhD working on Superconducting Nanowire Single Photon Detectors. Previously he worked at the startup company XRnanotech as an Operations Manager. He then went on to earn his Masters degree in Physics at Stockholm University in Sweden, during which he worked on compact cold atom sources as part of the Ion Trap Quantum Computation group at the Paul-Scherrer Institute.

Launch of the first Geneva Quantum Network Infrastructure!

Tue, 14 Oct 2025 12:40:00 +0000

The Geneva Quantum Network has officially launched! This is the first Geneva-based quantum network infrastructure, brought together by a consortium comprised of the University of Geneva (UNIGE), CERN, HEPIA, ID Quantique, Rolex, and the Cantonal Office for Information Systems and Digital Technology (OCSIN).

Welcome Manish Sahu!

Mon, 12 May 2025 07:33:00 +0000

Manish has joined the Quantum Technologies team for a PhD working on Superconducting Nanowire Single Photon Detectors. He earned his Masters in Solid State Physics from the Indian Institute of Space Science and Technology, and has previously worked at the Indian Space Research Organization

IOP’s ten outstanding quantum articles published in the New Journal of Physics, featuring Rob and Hugo!

Tue, 18 Feb 2025 12:45:00 +0000

“The SECOQC quantum key distribution network in Vienna”, co-authored by our group leaders Rob Thew and Hugo Zbinden, and "The quantum technologies roadmap: a European community view", co-authored by Rob Thew, have both been voted in IOP’s ten outstanding quantum articles published in the New Journal of Physics (NJP) since its inception! Congratulations Rob and Hugo!

Welcome Javier Núñez!

Tue, 01 Oct 2024 09:13:00 +0000

Javier has joined the Quantum Technologies team for a PhD, in partnership with ID Quantique. He received his Masters in Telecom Engineering from the University of Vigo, where he worked with Marcos Curty on quantum key distribution.

Welcome Shashank Kumar!

Thu, 08 Aug 2024 07:13:00 +0000

Shashank has joined the Quantum Technologies team for a PhD working on Quantum Key Distribution. He received his Masters in Optical Engineering from the Indian Institute of Space Science and Technology, and has previously worked at the Indian Space Research Organization.

Toward Heralded Distribution of Polarization Entanglement

Wed, 19 Jun 2024 07:25:00 +0000

Our new results from heralded distribution of entanglement are out now in Optica Quantum! In this work we experimentally demonstrated a scheme for distributing polarization-entangled photons for future quantum networks. To do this, we started with four independent single photons and created two entangled pairs from these. We then measured one photon from each pair in such a way that we entangle the two remaining photons (thus "swapping" the entanglement between the original pairs).

Welcome Loïc Millet!

Tue, 13 Feb 2024 08:49:00 +0000

Loïc has joined the Quantum Technologies team for a PhD, in partnership with ID Quantique. He received his Masters in Applied Physics from INSA Toulouse, and in Materials Science and Engineering from Seoul National University.

Welcome Mingsong Wu!

Wed, 11 Oct 2023 10:01:00 +0000

Mingsong has joined the Quantum Technologies team for a PhD. He received his Masters from Imperial College, where he worked with Michael Vanner on silica microresonators as quantum resources.

Hugo Zbinden Retires after 30 years at the Department of Applied Physics

Mon, 18 Sep 2023 13:34:00 +0000

Hugo Zbinden, quantum technology pioneer and one of our Group Leaders, has retired after 30 years at the Department of Applied Physics. We wish Hugo all the best for his retirement and new adventures!

Rebecka Sax Receives her PhD!

Mon, 04 Sep 2023 11:27:00 +0000

Rebecka Sax has received her PhD for work related to Quantum Key Distribution Systems. Thesis Title: Fast and Practical Integrated Quantum Communication Systems

Gigahertz Detection Rates and Dynamic Photon-Number Resolution with Superconducting Nanowire Arrays

Mon, 26 Jun 2023 14:08:00 +0000

A new paper on our state-of-the-art 14-pixel single photon detector with photon number resolution is now out in Nano Letters! Our novel design uses 14 independent pixels in an interleaved geometry, allowing the device to deliver high performance single-photon detection, whilst also being able to resolve the number of photons incident on the detector. These types of devices could find immediate application in linear optic quantum computing.

Patrik Caspar Receives his PhD!

Fri, 16 Jun 2023 07:02:00 +0000

Patrik Caspar has received his PhD for work related to Heralded Single Photon Sources. Thesis Title: Photonic Entanglement Certification and Distribution Based on Single Photons

A Fast High-Efficiency Photon-Number-Resolving Parallel Superconducting Nanowire Single-Photon Detector For Improving Heralded Single-Photon Sources

Wed, 14 Jun 2023 09:32:00 +0000

Two recent articles from our group demonstrate a novel photon-number-resolving (PNR) detector, based on a high-efficiency parallel SNSPD (P-SNSPD), and its application in quantum optics experiments! The results are out now in Physical Review Applied and Quantum Science and Technology. The novel architecture P-SNSPD design prevents electrical and thermal crosstalk. The development of the P-SNSPD allowed a significant improvement to be made to one of our existing heralded single photon sources.

High-Speed Integrated QKD System

Tue, 30 May 2023 08:04:00 +0000

Brand new results from our QKD work is out now in Photonics Research! Our researchers have developed a novel integrated Quantum Key Distribution system which transmits secret keys at extremely high speeds. These experiments are a crucial step towards implementing such ultra-secure communication in real-world scenarios, bringing us closer to a quantum-based future.

Rob Thew & Hugo Zbinden Awarded Quantum Transitional Measures Grant

Thu, 25 May 2023 09:01:00 +0000

Rob Thew and Hugo Zbinden have been awarded the Quantum Transitional Measures Grant from the SNF! This four-year funding is intended to allow the group to continue its cutting-edge research into quantum communication and quantum technologies.