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Quantum devices: breaking boundaries

Francken's annual Symposium

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Welcome to the 2026 Francken Symposium

Welcome to the website of the annual Francken Symposium! This year's theme is Quantum devices with the slogan "Breaking boundaries".

About the Symposium

Quantum devices origin traces back to the early 20th century, when physicists like Max Planck and Albert Einstein revolutionized science by discovering that energy exists in discrete packets called "quanta." This theoretical groundwork led to the "first quantum revolution" in the mid-1900s, producing foundational technologies like the transistor and the laser which drive the modern internet and electronics. Today, we are navigating a "second quantum revolution" focused on manipulating individual particles. Beyond computing, quantum utility is already established in daily life: atomic clocks use quantum oscillations to enable the GPS on your phone, and MRI machines rely on the quantum spin of atoms for medical imaging. Emerging applications also include unhackable quantum cryptography for banking security, and ultra-sensitive quantum sensors used in geology and brain diagnostics.

Our Speakers

Day Chair

Roberto Lo Conte

Roberto Lo Conte

University of Groningen

Roberto Lo Conte obtained his Bachelor's and Master's degrees in Physics from the University of Naples Federico II. He completed his PhD at the University of Mainz, Germany, focusing on nanomagnetism and spintronics...

Roberto Lo Conte obtained his Bachelor's and Master's degrees in Physics from the University of Naples Federico II. He completed his PhD at the University of Mainz, Germany, focusing on nanomagnetism and spintronics. Following postdoctoral research at UC Berkeley and the Paul Scherrer Institute in Switzerland, he joined the University of Groningen. He is currently an Assistant Professor at the Zernike Institute for Advanced Materials (ZIAM), where his research group explores novel magnetic spin textures and their dynamics in quantum materials, aiming to lay the groundwork for next-generation, energy-efficient computing and memory devices.

Romana Schirhagl

Romana Schirhagl

RUG / UMCG

Romana Schirhagl is a Professor at the University of Groningen and University Medical Center Groningen (UMCG), where she leads a research group focused on quantum sensing for biomedical applications...

Romana Schirhagl is a Professor at the University of Groningen and University Medical Center Groningen (UMCG), where she leads a research group focused on quantum sensing for biomedical applications. She obtained her PhD from Vienna University and later co-founded the spin-off company QTsense to commercialize quantum sensing equipment. At the symposium, she will speak about magnetometry for biological systems.

Ishitro Bhaduri

Ishitro Bhaduri

Guest Speaker

Ishitro Bhaduri is a PhD student at the CogniGron Institute in the University of Groningen...

Ishitro Bhaduri is a PhD student at the CogniGron Institute in the University of Groningen. He is part of the Spintronics of Functional Materials research group, focusing on developing unconventional computing paradigms based on complex oxides. In the symposium, he will present a talk titled "From spintronics to neuromorphic computing".

Loredana Protesescu

Loredana Protesescu

RUG

Loredana Protesescu is an Associate Professor at the University of Groningen, Zernike Institute for Advanced Materials, where her research focuses on quantum dots and advanced functional nanomaterials...

Loredana Protesescu is an Associate Professor at the University of Groningen, Zernike Institute for Advanced Materials. She obtained her doctoral degree at ETH Zurich and later continued as a postdoctoral scholar, then a postdoctoral fellow at the Massachusetts Institute of Technology. At the symposium, she will present her work on advanced functional nanomaterials, with a focus on quantum dots.

Douwe van Netten

Douwe van Netten

RUG

Douwe van Netten is a PhD student working in the Antonija Grubisic-Cabo Group at the University of Groningen. His talk will discuss how chemical modification can tune the properties of layered materials, focusing on Bi-substituted PtTe₂ and how this affects its surface chemistry and stability...

Douwe van Netten is a PhD student working in the Antonija Grubisic-Cabo group at the University of Groningen. His talk will focus on how chemical modification can tailor material properties for device applications, using Bi-substituted PtTe₂ as an example. PtTe₂ is a type-II Dirac semimetal with promising catalytic and transport properties, but changing its electronic structure can also affect its surface chemistry. Using X-ray photoelectron spectroscopy, the work shows that Bi substitution makes PtTe₂ more susceptible to oxidation and introduces new surface reaction pathways. This highlights why surface chemistry must be considered when designing functional layered materials for future devices.

Angeliki Nikolaou

Angeliki Nikolaou

RUG

Angeliki Nikolaou is a PhD student working in the Van der Wal Group at the University of Groningen. Her talk will focus on vanadium defects in silicon carbide, which can act as optically active color centers for quantum communication applications...

Angeliki Nikolaou is a PhD student working in the Van der Wal Group at the University of Groningen. Her talk will focus on vanadium defects in 4H-silicon carbide, a material that can host optically active color centers. These defects can absorb and emit light in the near-infrared telecom range, making them interesting for quantum communication through existing fiber-optic networks. The talk will explain how the quantum states of vanadium defects can be controlled and read out, especially the spin states of the bound electron that carry quantum information. It will also discuss how RF electric fields can be used instead of magnetic fields to drive electron spin transitions.

Pictures from the 2025 Symposium

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Sponsors

Meet the Committee

The symposium is organised by a dedicated committee of students who worked together to arrange the speakers, sponsors, location, promotion, and overall programme. From left to right:

  • Imogen Legge
  • Lara Nicol
  • Riccardo Carlini
  • Noa Krosse
  • Jan Jager
  • Dominik De Wit
Symposium committee