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Nestled in a modern city surrounded by nature and with an exceptional standard of living, ¾ÅÉ«ÊÓƵ offers excellent working conditions in a vibrant scientific community.

The light & matter group of Prof. Dr. Ilja Gerhardt at the Institute for Solid State Physics invites applications for the following position, available to start as soon as possible: PhD Researcher in Quantum Sensing & Magnetometry (salary scale 13 TV-L, 60 %)

The position is limited to 3 years.

Optically pumped magnetometers (OPMs) based on hot atomic vapors are among the most sensitive magnetic field sensors available today. They enable a wide range of research - both fundamental and application-driven. On the fundamental side, OPMs are key tools for exploring novel quantum sensing techniques and probing deep questions in physics, such as searches for dark matter and tests of fundamental symmetries. From an applied perspective, OPMs can achieve sensitivities rivaling SQUIDs without requiring cryogenics, and their operation is rooted in well-understood atomic physics, making them robust and less sample-dependent than other magnetic sensing technologies.

These sensors can be neatly integrated on a drone and used for different applications such as geophysical exploration, archaeological surveying and detection of landmines and unexploded shells. This is the goal of our flagship project QGrad: working in close collaboration with several academic and industrial partners, we aim to combine a state-of-art OPM with drone technology.

Your role

As a PhD candidate, you will work at the interface of fundamental research and practical applications of atomic magnetometry. Your responsibilities will include:

• Fundamental research in atomic magnetometry: You will explore and develop advanced techniques for optically pumped magnetometers, contributing to fundamental studies in quantum sensing.
• Sensor development and lab-based experimentation: You will take part in the design, construction, and optimization of working magnetometer and gradiometer systems. This includes hands-on lab work with vapor cells, optics and lasers, development of electronics, data acquisition systems, signal processing, and data analysis.
• Airborne deployment and field application: You will support the integration of the sensor into a drone platform, ensuring robust operation in real-world conditions. This part of the work includes engineering adaptation, collaboration with external partners, and active participation in field deployments, where the sensor will be used for geoprospection and the detection of unexploded ordnance.
• Teaching and student supervision: You will engage in teaching activities and contribute to the supervision and mentoring of undergraduate or Master's students involved in the project.

Who are we looking for?

We are seeking a highly motivated PhD candidate who:

• Holds a completed Master’s degree in physics, engineering, or a related field
• Has a strong interest in interdisciplinary research combining experimental physics and engineering
• Is eager to learn and develop skills in areas such as atomic and quantum physics, optics, electronics, programming, and data analysis
• Brings creativity, critical thinking, and persistence to complex experimental work
• Is enthusiastic about working in a team and collaborating with academic and industry partners
• (Ideally) Has some prior experience in one or more of the following: atomic physics, electronics, optics, measurement techniques and programming

Equal opportunities and diversity are core values at ¾ÅÉ«ÊÓƵ. Our goal is to tap into individual potential and open up possibilities. We therefore welcome applications from anyone interested in the position, irrespective of gender, nationality, ethnic origin, religion or ideology, disability, age, sexual orientation and identity.

We strive towards a balanced and diverse workforce and a reduction in under-representation in accordance with the Lower Saxony Equal Rights Act (Niedersächsisches Gleichberechtigungsgesetz – NGG). We therefore also welcome applications from women for the above-mentioned position. Preference will be given to equally-qualified candidates with disabilities.

Why join us?

• Perform work at the heart of quantum sensing
• A highly sophisticated lab, with no shortage of interesting projects
• A project, which starts in the lab, but will be used in the outside world
• Fun lab environment
• Open-minded and open-source ideas & flat organizational structure
• A big joint venture, supported by industry

With more than 5.000 employees, ¾ÅÉ«ÊÓƵ is one of the largest and most attractive employers in the Hannover region. We offer a vibrant interdisciplinary and international working environment, and promote personal and professional development ranging from subject-related skills to leadership and languages.

Part-time employment as well as remote work (mobile work, work from home) can be arranged upon request. We support employees with , through services such as back-up childcare, childcare during school holidays, and parent-child offices, as well as providing individual advice regarding family responsibilities and caring for dependants.

To promote health and well-being among employees, we offer an extensive with over 100 different sports, as well as a fitness centre with a sauna and climbing space. Health management measures, such as courses on stress management, good nutrition and relaxation, aim to ensure a healthy workplace.

 

Additional information

If you need further information on the project, the research field and its direction, you are welcome to request further information to Dr. Ilja Gerhardt (email: ilja.gerhardt@physics.uni-hannover.de).

Please send your application by 17/08/2025 with the usual documents (a letter of motivation, a CV, some grade transcripts, etc.) summarized in one pdf file to our secretary to