J.A. Klärs | People Pages: Find employees & contact details

I am an Associate Professor at the Adaptive Quantum Optics Chair. My research revolves around the study of open quantum systems.

Short biography

In 2006, I completed my master’s degree in physics at RWTH Aachen. In my master's thesis, I theoretically investigated statistical properties of magnets and crystal surfaces. For my PhD, I switched to experimental quantum optics working on the Bose-Einstein condensation of photons at the University of Bonn. After finishing my PhD in 2011, I continued to work at the University of Bonn as project leader for the photon Bose-Einstein condensation experiment. In 2015, I moved to ETH Zürich to work on semiconductor optomechanical nanostructures. In September 2017, I started as Assistant Professor at the University of Twente. My research revolves around the study of open quantum systems.

Expertise

Physics
- Bose-Einstein Condensate
- microcavity
- Waveguide
- Photonics
- Quantum Gas
- Ground State
- Wave Function
- Condensation

Organisations

My research revolves around the study of open quantum systems.

Publications

2026

Integrated Photonics for Quantum Authentication, Communication and Computing (2026)[Contribution to conference › Poster] MESA+ Meeting 2026. Bevers, R., Walstra, T., Nascimento Duplat, D., Waninge, R., Tromp, T., Dekker, S., Thuis, N., Sitnic, D., Mishra, P. M., Bajar, K., Sahoo, H., Korterik, J. P., Braamhaar, R. B. G., Rothe, S., Klaers, J. & Pinkse, P. W. H.Thermodynamic and computational aspects of quantum dynamics in two-dimensional photon gases (2026)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. Puplauskis, M.https://doi.org/10.3990/1.9789036571470

2025

Non-classical and chaotic motion of two-dimensional light (2025)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. Sharoglazova, V.https://doi.org/10.3990/1.9789036568869Eigenstate Thermalization Hypothesis in 2D Photon Gas System (2025)[Contribution to conference › Poster] 48th Annual Meeting NNV AMO 2025. Puplauskis, M., Sharoglazova, V. & Klaers, J.https://www.ru.nl/sites/default/files/2025-09/comp.program-and-abstract-48thannual-meeting-nnv-amo-2025-def.pdfEnergy–speed relationship of quantum particles challenges Bohmian mechanics (2025)Nature, 643(8070), 67-72. Sharoglazova, V., Puplauskis, M., Mattschas, C., Toebes, C. & Klaers, J.https://doi.org/10.1038/s41586-025-09099-4Inverse solving the Schrödinger equation for precision alignment of a microcavity (2025)Physical Review Research, 7(1). Article 013296. Mattschas, C., Puplauskis, M., Toebes, C., Sharoglazova, V. & Klaers, J.https://doi.org/10.1103/PhysRevResearch.7.013296Gain-induced quantum-to-classical transition in a chaotic gravitational wedge (2025)[Contribution to conference › Poster] Quantum Correlated Light and Matter 2025 (Unpublished). Sharoglazova, V., Puplauskis, M., Hof, L. & Klaers, J.In-situ Coherence Tuning of a Network of Photon BECs (2025)[Contribution to conference › Poster] NWO Physics 2025. Puplauskis, M., Sharoglazova, V., Toebes, C., Mattschas, C. U. & Klaers, J.Measurement-induced quantum-to-classical transition in a chaotic gravitational wedge (2025)[Contribution to conference › Poster] 48th Annual Meeting NNV AMO 2025 (Unpublished). Sharoglazova, V., Puplauskis, M., Hof, L. & Klaers, J.

2024

Effective low-temperature photon gas through tunnel cooling (2024)[Contribution to conference › Poster] 47th Annual Meeting NNV AMO 2024. Toebes, C. & Klaers, J.

Research profiles

Courses academic year 2026/2027

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses academic year 2025/2026

Address

University of Twente

Horst Complex (building no. 20), room ME123
De Horst 2
7522 LW Enschede
Netherlands

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