Making Quantum Systems Applicable

Our Research

We conduct innovative research on atomic, quantum-optical, and solid-state-based platforms with a focus on quantum-based measurement technologies. Within Leibniz IPHT, we contribute to the fields of ultrasensitive detection, system integration, and applied photonics, extending these areas through quantum-limited sensing as well as quantum components and the application-specific measurement instruments built upon them.

Our work bridges fundamental quantum physics and application-oriented research, addressing the entire development chain—from design and nanofabrication through the control of quantum-physical properties to the integration of demonstrators, including specialized methods of data analysis. The research focus lies on quantum-physical measurement principles, scalable architectures, and tailored interfaces for precise, robust, and application-specific quantum systems. Among other developments, we work on atomic vapor cells, superconducting circuits and qubits, as well as hybrid components used in experiments, instruments, and research questions in medicine, the geo- and environmental sciences, and industrial applications.

Our research also includes the development of demonstrators for high-resolution magnetic field measurements, cryogenic photonic quantum sensors for quantum-limited detection, and hybrid systems that combine different quantum technologies. It is closely linked to the institute’s technology portfolio and makes use of micro- and nanofabrication, optical and fiber-based technologies, systems engineering, and readout electronics. This is complemented by specialized infrastructure, such as low-noise measurement laboratories, for interdisciplinary research activities.

Prof. Dr. Ronny Stolz

Head of Department
+49 3641 206119
ronny.stolz@leibniz-ipht.de

Jana Schaarschmidt

Assistant
+49 3641 206101
jana.schaarschmidt@leibniz-ipht.de

Research Focus Areas

Application-Oriented
Quantum Technologies

Quantum systems for medicine, life, environmental, and geosciences; transfer to industrial and academic applications

Quantum
Sensing

Optically pumped magnetometers and energy-resolving single-photon detectors

Solid-State-Based
Quantum Circuits

Superconducting circuits, qubits, and hybrid quantum systems for applications in quantum computing, communication, sensing, and metrology

Materials, Technologies
& Methods

Materials research for quantum systems; micro- and nanofabrication, 3D integration techniques

Hybrid Quantum
Systems

Fundamental research on optical, atomic, and superconducting components for highly integrated quantum systems

Quantum-Based
Instrumentation

System integration of quantum systems; data processing and inversion methods, with a future perspective including machine-learning approaches

Cooperations and Networks

The Quantum Systems research department is embedded in national and international research and transfer networks in quantum technologies and works closely with partners from physics, materials science, and engineering. A key focus is on translational research that supports the transition from quantum-physical fundamentals to application-oriented systems and market-ready technologies.

In technology transfer, close collaborations exist with national and international companies to translate quantum-based sensor, circuit, and measurement concepts into robust applications and industrial products. Scalability, reliability, and system integration are central priorities.
Through the Quantum Systems research department, Leibniz IPHT plays a central role in the FLUXONICS network and serves as a European foundry site for superconducting circuits. These activities are continued within the framework of the European foundry initiative SUPREME. In addition, via the Quantum Systems department, Leibniz IPHT is a member of the national Consortium for Cryogenic Detectors and Superconducting Electronics (CDS), which facilitates access for research institutions and companies to detectors, highly integrated readout circuits, and application-specific instruments.

Through its involvement in the Research College “Physics of the Earth’s Interior” (FKPE) as well as geoscience research consortia, including DESMEX-MinD, the department is nationally engaged in geophysical and geotechnical research questions.
Furthermore, it is part of the global network of optical magnetometers for the search for exotic physics (GNOME) and operates corresponding measurement stations in Germany and Brazil.

Within Leibniz IPHT, the Quantum Systems research department is closely networked with units in photonics, sensor technology, micro- and nanotechnology, and instrument development. This collaboration enables the development of quantum-based systems from physical concept to integration into application-ready measurement instruments and strengthens the institute’s role as a hub for ultrasensitive and quantum-limited measurement technologies.