Postdoctoral Position in Antimatter

Updated: 3 months ago
Job Type: FullTime
Deadline: 30 Jun 2023

The Department of Physics and Astronomy, Aarhus University, Denmark (

) has one immediate openings for postdoctoral fellows on the ALPHA antihydrogen experiment at CERN, Geneva (


Starting Date and Period

The position is for 2 years and is available from 1 November or shortly thereafter.

Job description and your profile

ALPHA conducts precision measurements on atoms of antihydrogen in order to test fundamental symmetries. We seek a highly motivated candidate to contribute to our program of spectroscopic studies of trapped antihydrogen atoms. Preference will be given to candidates with experience in precision laser spectroscopy, ion trapping and non-neutral plasmas, atom trapping, or closely related disciplines. Experience with stabilized lasers, frequency metrology, superconducting magnets, cryogenic handling, ultra-high vacuum systems, and position sensitive particle detection will also be valued. The fellow will be employed by Aarhus University but permanently stationed at CERN in Geneva. The initial appointment will be for two years. ALPHA postdocs are expected to contribute to all aspects of the experiment, including experimental shift work, which takes place 24 hours per day during the operating period of the Antiproton Decelerator. The successful candidate will work under the direct supervision of the ALPHA Spokesperson, Professor Jeffrey Hangst. This position is funded by a grant from the Carlsberg Foundation.

The ALPHA Collaboration at CERN is the only group in the world able to study the properties of atoms of antihydrogen, the antimatter equivalent of hydrogen.

What we offer

The successful candidate is offered:

  • access to a well-developed research infrastructure at one of the world’s most prestigious physics facilities
  • a research climate inviting lively, open and critical discussion within and across different fields of research
  • a working environment with teamwork, close working relations, network activities among young scientists and social activities

Place of Work

The place of work is CERN, CH-1211 Geneva 23, Switzerland and the area of employment is Aarhus University with related departments, stationed at CERN.

Contact Information

Further information can be obtained from Professor Jeffrey Hangst, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C /  CERN, CH-1211 Geneva 23, Switzerland


Deadline 30 June 2023

Application procedure

Shortlisting is used. This means that after the deadline for applications – and with the assistance from the assessment committee chairman, and the appointment committee if necessary, – the head of department selects the candidates to be evaluated. All applicants will be notified whether or not their applications have been sent to an expert assessment committee for evaluation. The selected applicants will be informed about the composition of the committee, and each applicant is given the opportunity to comment on the part of the assessment that concerns him/her self. Once the recruitment process is completed a final letter of rejection is sent to the deselected applicants.

Letter of reference

If you want a referee to upload a letter of reference on your behalf, please state the referee’s contact information when you submit your application. We strongly recommend that you make an agreement with the person in question before you enter the referee’s contact information, and that you ensure that the referee has enough time to write the letter of reference before the application deadline. Unfortunately, it is not possible to ensure that letters of reference received after the application deadline will be taken into consideration.

Formalities and salary range

Natural Sciences refers to the

Ministerial Order on the Appointment of Academic Staff at Danish Universities under the Danish Ministry of Science, Technology and Innovation


The application must be in English and include a curriculum vitae, degree certificate, a complete list of publications, a statement of future research plans and information about research activities, teaching portfolio and verified information on previous teaching experience (if any). Guidelines for applicants can be found here.

Appointment shall be in accordance with the collective labour agreement between the Danish Ministry of Taxation and the Danish Confederation of Professional Associations. Further information on qualification requirements and job content may be found in the Memorandum on Job Structure for Academic Staff at Danish Universities .

Salary depends on seniority as agreed between the Danish Ministry of Taxation and the Confederation of Professional Associations.

Aarhus University’s ambition is to be an attractive and inspiring workplace for all and to foster a culture in which each individual has opportunities to thrive, achieve and develop. We view equality and diversity as assets, and we welcome all applicants.

Research activities will be evaluated in relation to actual research time. Thus, we encourage applicants to specify periods of leave without research activities, in order to be able to subtract these periods from the span of the scientific career during the evaluation of scientific productivity.

Aarhus University offers a broad variety of services for international researchers and accompanying families, including relocation service and career counselling to expat partners. Read more here . Please find more information about entering and working in Denmark here .

Aarhus University also offers a Junior Researcher Development Programme targeted at career development for postdocs at AU. You can read more about it here .

The application must be submitted via Aarhus University’s recruitment system, which can be accessed under the job advertisement on Aarhus University's website.

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