The Department of Physics is one of the biggest departments within the Faculty of Science with about 150 employees and 2,000 students. The XSoLaS group with PI:s Anders Nilsson, Lars G.M. Pettersson, Foivos Perakis, and Sergey Koroidov is organized within the Division of Chemical Physics and focuses on studies of water, solutions and heterogeneous catalysis using mainly X-ray probes and theoretical simulation techniques.

Project description
The project is funded through an ERC Advanced Grant (GAS-WAT) and focuses on determining the character and effects of structural fluctuations in liquid water. Is there “hidden” structure in normal liquid water? Do nanoscopic structural heterogeneities in ambient water exist and affect solution chemistry and aquatic life? From both experiment and theory a two-state picture of water is emerging with fluctuations between high- (HDL) and low-density (LDL) local structures at ambient conditions. The structure of these and time-scale on which they may exist are unknown.

We seek talented and highly motivated postdoctoral fellows in any of the areas of advanced force-field development including machine-learning techniques, molecular dynamics and/or Monte Carlo simulations of liquids, spectroscopy (X-ray and/or vibrational) simulations in liquids, as well as modelling of transport of solvated gases to biological membranes to address these issues.

Main responsibilities
The position is within research where the successful candidates are expected to contribute significantly to developing and/or applying techniques that address research questions within the project as exemplified above.

Qualification requirements
Postdoctoral positions are appointed primarily for purposes of research. Applicants are expected to hold a Swedish doctoral degree or an equivalent degree from another country.

Assessment criteria
The degree must have been completed at latest before the employment decision is made, but no more than three years before the closing date. An older degree may be acceptable under special circumstances. Special reasons refer to sick leave, parental leave, elected positions in trade unions, service in the total defense, or other similar circumstances as well as clinical attachment or service/assignments relevant to the subject area.

In the appointment process, special attention will be given to proven research skills within the subject area, as well as programming skills and experience from large-scale simulation techniques.

Terms of employment
The position involves full-time employment for a minimum of two years and a maximum of three years, with the possibility of extension under special circumstances. Start date 2022-09-01 or as per agreement.

Stockholm University strives to be a workplace free from discrimination and with equal opportunities for all.

Further information about the position can be obtained from the PI of the project, Professor Lars G.M. Pettersson, telephone: +46 70 495 19 90, or the Head of the Department, Professor Jan Conrad, telephone: +46 8 553 787 69,

Union representatives
Ingrid Lander (Saco-S), telephone: +46 708 16 26 64,, Alejandra Pizarro Carrasco (Fackförbundet ST/Lärarförbundet), telephone: +46 8 16 34 89,, and (SEKO).

Apply for the position through the Stockholm University’s recruitment system. It is the responsibility of the applicant to ensure that the application is complete in accordance with the instructions in the job advertisement, and that it is submitted before the deadline.

Please include the following information with your application

  • Your contact details and personal data
  • Your highest degree
  • Your language skills
  • Contact details for 2–3 references. Important: Your academic referees should send us recommendation letters via email to: and state in the subject line: SU FV-2746-22 + name of the applicant.

and, in addition, please include the following documents

  • Cover letter
  • CV – degrees and other completed courses, work experience and a list of publications
  • Research proposal (no more than 3 pages) describing:
    – why you are interested in the field/project described in the advertisement
    – why and how you wish to complete the project
    – what makes you suitable for the project in question
  • Copy of PhD diploma
  • Publications in support of your application (no more than 3 files).

The instructions for applicants are available at: How to apply for a position.

You are welcome to apply!

Stockholm University contributes to the development of sustainable democratic society through knowledge, enlightenment and the pursuit of truth.

Closing date: 15/08/2022


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