„In PhoQS, we work intensively together as colleagues from different disciplines to create something new in the field of quantum photonics and to bring basic research into application.”

Prof. Dr. Christine Silberhorn,
Spokesperson of the Institute for Photonic Quantum Systems (PhoQS)



Bringing Physics closer to the people! Paderborn scientists present their research in a new series of "Science Talks".

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Baufortschritt des Forschungsgebäudes | Baustellenbegehungen für Uni-Angehörige

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„Science Talks“: Eine Reise in die Quantenwelt. Neue Veranstaltungsreihe der Universität Paderborn macht Wissenschaft greifbar.

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Nina Lange shows Sum Frequency Generation | Video posting on Instagram and YouTube

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04.08.2023 - 04.08.2023

Building an Intercampus Entanglement-Sharing Quantum Network | Talk by E. Figueroa

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Sommercamp "Vielfalt stärken" | Laborführungen im PhoQS

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Mathematical Physics in the Heart of Germany | Successful first round of the workshop

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ZEISS Research Award 2023 | Christine Silberhorn gives laudatory speech

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PhoQC Young Researchers' Programme | Neue Mitglieder

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Paderborn University professor named fellow of the Max Planck School of Photonics

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PB^Math 2023 | Erfolgreicher Durchlauf der diesjährigen Sommerschule

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CLEO 2023 | Numerous participation by physicists from Paderborn

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Registration opened | Mathematical Physics in the Heart of Germany (Workshop)

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TRR 142 and PhoQS at the 10th NRW Nano Conference

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New technology developed for quantum cryptography applications

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Our Research

Interdisciplinary research at a top level

PhoQS combines the expertise of over 30 scientists, including three ERC grant holders, from four disciplines. The research work of the 13 working groups from the departments of physics, mathematics, computer science and electrical engineering unites excellent basic research with application-oriented research at the highest level.

Research at PhoQS is currently funded nationally and internationally in more than 15 projects.


The PhoQS forms the structural basis for the interdisciplinary research work of more than 30 scientists.

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Research Projects

Our active research projects cover diverse application fields of photonic quantum research.

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Research Results

Our research results are published in numerous publications.

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10.10.2023 - 11.10.2023

Quantum Effects in Stuttgart

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Our Institute

Scientific excellence through structural networking

PhoQS serves as a central point for highly innovative interdisciplinary research. In addition to the strategic coordination of research activities, PhoQS provides the necessary infrastructure for interdisciplinary and forward-looking quantum research.

Executive Board

The PhoQS Executive Board bundles central research management, joint strategic planning and the conception of teaching and transfer.

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In close consultation with the Executive Board, the Managing Director and Infrastructure Manager coordinate the activities of PhoQS. The PhoQS SupportCenter supports the members in the implementation and external presentation of research activities as well as in the promotion of interdisciplinarity and young researchers.

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Fundamental to the interdisciplinary research work at PhoQS is a cross-institutional infrastructure. This is maintained by dedicated infrastructure teams.

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Young Talents & Transfer

Through target group-oriented programmes, PhoQS not only promotes young scientists, but also creates a dialogue between society and science at an early stage.

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Research Groups in PhoQS (alphabetical order)

Codes and Cryptographie (Prof. Dr. Johannes Blömer)

The group deals with questions from cryptography and cluster analysis.

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Computational Optoelectronics and Photonics (Prof. Dr. Torsten Meier)

We are interested in the optical, electronic and quantum optical properties of different material systems, which we analyse using microscopic theory and numerical simulations.

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Hybrid Quantum Photonic Devices (Prof. Dr. Klaus Jöns)

Our Hybrid Quantum Photonic Devices (hqpd) group is engaged in the development of novel devices for photonic quantum technologies, with a particular focus on quantum communication and photonic quantum computing applications.

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Integrated Quantum Optics (Prof. Dr. Christine Silberhorn)

The group develops and investigates novel optical devices and methods with regard to applications in quantum information processing, quantum communication and for the fundamental understanding of quantum theory.

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Mesoscopic Quantum Optics (Prof. Dr. Tim Bartley)

The mesoscopic quantum optics (MQO) group is trying to expose non-classical phenomena to ever larger energy scales by using light.

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Optoelectronic Materials and Devices (Prof. Dr. Dirk Reuter)

The group for optoelectronic materials and devices deals with the production and characterisation of semiconductor structures for optical and electronic applications, e.g. in quantum information technology.

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Quantum Computation (Prof. Dr. Sevag Gharibian)

The research group Quantum Computation deals with algorithms for quantum applications and the complexity of quantum systems.

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System and Circuit Technology (Prof. Dr.-Ing. Christoph Scheytt)

Modern nano- and microelectronics enable the combination of complex, digital circuits, analogue circuits and novel components on one chip. We are researching a new generation of extremely energy-efficient intelligent systems.

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Spectral Analysis (Prof. Dr. Tobias Weich)

The group deals with a wide range of analytical problems motivated by spectral geometry, the theory of dynamical systems, mathematical physics or representation theory.

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Theoretical Quantum Science (Prof. Dr. Jan Sperling)

We are a young team of scientists in quantum theory. Our research is driven by the curiosity to explore the colourful diversity and wonderful complexity of quantum physics.

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Theory of Functional Photonic Structures (Prof. Dr. Stefan Schumacher)

Our research covers a range of exciting topics in theoretical condensed matter physics and optics. Areas of particular interest currently include nonlinear polariton physics in semiconductor microcavities, multi-exciton states and multi-photon transitions in semiconductor quantum dots.

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Ultrafast Nanophotonics (Prof. Dr. Thomas Zentgraf)

The Ultrafast Nanophotonics group focuses on research into the optical properties of artificially created material systems.

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Probability Theory (Prof. Dr. Martin Kolb)

Probability theory is a mathematical subfield with rich references to other scientific disciplines within and outside mathematics.

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Selected Projects

You can find an overview of all projects at the Institute on our project page.


Job Advertisements

Our current vacancies in the scientific or non-scientific area can be found in the list of our job advertisements.


Management and Contacts

Prof. Dr. Christine Silberhorn


Prof. Dr.-Ing. J. Christoph Scheytt

Deputy Spokesperson

Dr. Benjamin Brecht

Managing Director

Dr. Christof Eigner

Head of Laboratories and Scientific Infrastructure

Daniela Gerdes

Head of PhoQS SupportCenter