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Ph.D. Scholarship in theoretical and computational physics - Dynamics of liquids and solids
Ph.D. in Physics
Ph.D. scholarship in theoretical and computational physics - Dynamics of liquids and solids
Department of Science and Environment, Roskilde University, invites applications for a position as Ph.D. student of
Physics from September 1 or soon thereafter. The position is for a period of three years.
Description of the Ph.D. project
Funded by the VILLUM Foundation for the period 2017-2023, the Matter project is an integrated part of the Glass and
Time center (http://glass.ruc.dk) at Roskilde University’s Department of Science and Environment. Glass and Time is
characterized by strong collaboration between experiment, simulation, and theory. The purpose of Matter is to
understand the fundamental governing principles of structure and dynamics of liquids and solids, in particular to
investigate and further develop the isomorph theory.
We are looking for a talented Ph.D. student for a theoretical/computational project in Matter. The student will be trained in
state-of-the-art GPU computing and molecular dynamics (http://rumd.org), as well as in theoretical methods associated
with the study of liquids and solids. The Glass and Time center has exclusive access to one of the fastest computing
facilities in Denmark, a GPU-cluster with 400 TFLOP peak performance.
The Ph.D. project will focus on one of the two projects listed here:
Physical aging, i.e., the gradual change of material properties due to the slow adjustments of molecular
positions. Extensive computer simulations will be performed and compared to recent theoretical predictions
(Dyre 2015, Hecksher et al, 2015). The ambition is that the simulations should inspire further theoretical
development on this subject, which is important both in applied and fundamental materials research.
Equations of state and quasiuniversality. A new theory of quasiuniversality (Dyre, 2016) deals with the
condensed liquid phase, i.e., liquids not far from the melting line - as well as with the crystalline phase. This
theoretical and computational project investigates the possibility of developing a quasiuniversal equation of
state for systems obeying the isomorph theory and, if possible, extending the isomorph theory to apply also to
the gas phase.
References: Dyre, J. C. (2015), J. Chem. Phys. 143, 114507; Dyre, J. C. (2016), J. Phys.: Condens. Matter 28, 323001;
Hecksher, T. et al. (2015), J. Chem. Phys. 142, 241103.
The following qualifications are required:
Master’s degree in Physics or a related field
Strong mathematical skills
Experience with theoretical work and computer simulations
We are looking for an ambitious, curious and open-minded person. You are expected to possess good communication
skills and to be a visible, involved participant in the department’s daily activities.
In the formal assessment regarding employment consideration will be given to;
In the assessment regarding enrollment consideration will also be given to the following criteria:
Grades of your master’s study
Educational skills and any further professional qualifications
Quality and relevance of the project description (see below)
Following the official Roskilde University rules, the application must include the below items.
1. Cover letter
3. Documentation of education including grades from Master’s programme or equivalent
4. Your description of the Ph.D. project - Here you describe in which direction you would like to work
and how your qualifications fit into this. A detailed project description may be provided, but is not
5. Your time schedule of the Ph.D. project - Here you state the suggested date of start.
6. If applicable: Documentation for any research experience, work experience or publications.
For further information you are welcome to contact Prof. Thomas Schrøder at email@example.com or Prof. Jeppe Dyre at
Terms of employment
The employment is on full time, 37 hours per week and formally you will refer to Head of Department, Susanne
Sørensen. Ph.D. students have the same rights, formal working hours, vacation, etc., as others in the Danish workforce.
After taxes the monthly salary is approximately DKK 18000 (2400 Euro).
Please submit your application no later than August 1, 2018.
Material received after this date will not be taken into consideration.
To apply for the position go to www.ruc.dk/en/job/
Only applications in English are accepted.