Ulf Rørbæk Pedersen

Ulf Rørbæk Pedersen is an Associate Professor in the Department of Science and Environment at Roskilde University, specializing in Mathematics and Physics (IMFUFA). His research focuses on statistical physics, thermodynamics, and the properties of glass-forming liquids. He has held postdoctoral positions at Vienna University of Technology (2011-2013) and University of California, Berkeley (2009-2011).

His research interests include:

• Density scaling in viscous liquids
• Isomorph theory and hidden scale invariance
• Molecular dynamics simulations
• Phase transitions and melting phenomena
• Multiplicity of time scales in complex systems

Dr. Pedersen's recent work has focused on developing theoretical frameworks for understanding glass-forming liquids, density scaling, and the relationship between structure and dynamics in complex systems. His research combines theoretical analysis with computer simulations to explore fundamental questions in statistical physics, with particular emphasis on the Weeks-Chandler-Andersen potential system and noble gases.

His publications show a consistent trajectory toward understanding fundamental principles governing liquid behavior near the glass transition, with significant contributions to density scaling theory and isomorph invariance. His work spans both theoretical developments and practical applications to specific physical systems.

Dr. Pedersen has been involved in significant research projects including 'Multiplicity of time scales. Challenges in sciences and communication' (2019-2020) and 'Matter' (2017-2023), which have contributed to interdisciplinary understanding of complex systems across physics, climate science, and materials research.

His research group utilizes advanced computational methods, including the RUMD molecular dynamics package, to investigate the fundamental properties of matter through extensive simulations and theoretical modeling.