PhD Candidate in Macroscopic Quantum Physics and Gravity at University of Vienna University of Vienna in Austria

The University of Vienna invites applications for a PhD Candidate (University Assistant, predoctoral) in the Faculty of Physics, starting May 1, 2026. This four-year position is part of the Aspelmeyer group, renowned for pioneering research at the interface of quantum physics and gravity. The group is embedded within the Quantum Optics, Quantum Nanophysics, and Quantum Information cluster, and is a member of the Vienna Center for Quantum Science and Technology (VCQ) and the Austrian Cluster of Excellence (quantA), offering a vibrant research environment with access to over 100 quantum scientists and 300 quantum researchers in Vienna.

Research in the Aspelmeyer group focuses on fundamental questions such as: "How does a quantum object gravitate?", "How far can we push massive objects into the quantum regime?", and "How well can we measure gravity of microscopic systems?" The successful candidate will contribute to developing new ideas, technologies, and experiments to advance macroscopic quantum physics, gravity at small scales, and the phenomenology of the gravity-quantum interface in table-top experiments. The main research activities include quantum optical control of levitated solid-state objects, exploration of their quantum properties for fundamental questions and novel quantum technology platforms, and precision measurements of ultra-weak gravitational forces.

As a university assistant (praedoc), you will actively participate in research, teaching, and administration. You will be involved in a well-funded research project focused on quantum entanglement in levitated solid-state platforms. Responsibilities include presenting your research plan to the faculty, completing a dissertation agreement within 12-18 months (reviewed annually), working independently and collaboratively towards dissertation completion, contributing to teaching (lab courses, exercise classes), and supporting group administration. Outreach activities such as publications, conference presentations, and public engagement are also expected.

Applicants must have completed a Master's degree or Diploma in physics, with a thesis in experimental quantum optics, quantum entanglement, or quantum control. Experience in academic writing is highly desirable. A solid background in experimental quantum optics, opto-mechanics, and optical levitation is required, along with familiarity with advanced experimental tools (homodyne and heterodyne detection, programming). Excellent written and spoken English is essential.

The position offers a basic salary of EUR 3,776.10 (40h/week, 14x per annum), with increases for credited professional experience. The employment duration is four years, initially limited to 1.5 years, with automatic extension unless terminated within the first 12 months. The University of Vienna provides an inspiring international academic environment, excellent public transport connections, opportunities for internal training and coaching (over 600 courses), and a strong commitment to equal opportunities, diversity, and the advancement of women. Preference will be given to female candidates with equal qualifications.

To apply, submit your scientific CV, summary of academic and research achievements, statement of research interests, Bachelor's and Master's degree certificates, and abstract of your Master's thesis via the application portal. For content questions, contact Professor Markus Aspelmeyer at [email protected]. The application deadline is April 5, 2026.

Join the University of Vienna and contribute to answering the big questions of the future in a dynamic and supportive research community.