Carlsberg Foundation

Roskilde University is advertising a PhD position in experimental physics focused on the aging of glasses and physical aging in non-crystalline solids. The project is part of “Aging of Glasses: to be or not to be like a liquid”, funded by the Carlsberg Foundation, and is hosted in the Glass and Time research group within the Department of Science and Environment.

The research topic centers on the limits of the Narayanaswamy concept of material time for describing physical aging. The work will study single-parameter aging for large temperature up-jumps across different glass-formers, including molecular liquids, polymers, metals, and computer-simulated liquids. Main experimental methods include Flash DSC and dielectric spectroscopy.

The PhD student will be enrolled in the Doctoral School of Science and Environment and associated with the research area Mathematics and Physics. The position is based at Roskilde University near Copenhagen, in the IMFUFA section for Mathematics & Physics, which offers a collaborative, internationally oriented environment with technical support for experimental work.

Eligibility highlights: a master’s degree or equivalent in physics is required; applicants should have experience with independent experimental work, programming and data analysis (e.g., Python or Matlab), strong mathematics skills, and a theoretical background in the statistical mechanics of soft matter. Good communication and willingness to engage in daily departmental activities and collaboration are also valued.

Funding and duration: the position is a full-time PhD scholarship/appointment for three years. The post does not state a stipend amount, but it is explicitly funded by the Carlsberg Foundation.

Application window: applications must be submitted in English no later than 2026-05-29. Required materials include a cover letter, CV, documentation of education and grades, a one-page PhD project description, a time schedule, and any relevant research/work/publication documentation.

How to apply: submit the application through the Roskilde University jobs portal. The post also provides contact details for Professor Kristine Niss for further information.