Active & Biological Matter

I am a research associate at the Jožef Stefan Institute and an assistant at the Faculty of Mathematics and Physics of the University of Ljubljana. My main research interest is understanding the physical underpinning of the behaviour of biological systems. To that end, I use theoretical and computational models of soft and active matter, focusing especially on cell-resolution models of tissue mechanics and the role of activity in cell dynamics and morphogenesis. My work is inherently interdisciplinary and often involves close collaboration with developmental biology labs.

News

2026: RSF grant: Nematic Or Polar Epithelia: what drives cell turbulence? (NOPE)

2025: ARIS (Program AD) grant: Nematic activity at cell resolution in three-dimensional tissues: morphogenesis, collective motion, and active mixtures

2025: Received Jožef Stefan Golden Emblem Prize for Ph.D. thesis

2025: Nature Communications paper: Vertex Model with Internal Dissipation Enables Sustained Flows

2024: Physical Review Letters paper (Editors' Suggestion): Cell Sorting in an Active Nematic Vertex Model

2024: Physical Review Letters paper: Basolateral Mechanics Prevents Rigidity Transition in Epithelial Monolayers

Contact Information

e-mail: jan.rozman (at) ijs.si 

office: No. 429, Jadranska ulica 19, Ljubljana; No. 253, Jamova cesta 39, Ljubljana (more likely to be in the former)