364 citations · 478 across the 14 of their papers we have counts for
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Projection operators in statistical mechanics: a pedagogical approach
Michael te Vrugt, Raphael Wittkowski
The Mori-Zwanzig projection operator formalism is one of the central tools of nonequilibrium statistical mechanics, allowing to derive macroscopic equations of motion from the micr…
Pair-distribution function of active Brownian spheres in two spatial dimensions: simulation results and analytic representation
Julian Jeggle, Joakim Stenhammar, Raphael Wittkowski
We investigate the full pair-distribution function of a homogeneous suspension of spherical active Brownian particles interacting by a Weeks-Chandler-Andersen potential in two spat…
Active Brownian motion with orientation-dependent motility: theory and experiments
Alexander R. Sprenger, Miguel Angel Fernandez-Rodriguez, Laura Alvarez +3
Combining experiments on active colloids, whose propulsion velocity can be controlled via a feedback loop, and theory of active Brownian motion, we explore the dynamics of an overd…
Orientational order parameters for arbitrary quantum systems
Michael te Vrugt, Raphael Wittkowski
The concept of quantum-mechanical nematic order, which is important in systems such as superconductors, is based on an analogy to classical liquid crystals, where order parameters…
Relations between angular and Cartesian orientational expansions
Michael te Vrugt, Raphael Wittkowski
Orientational expansions, which are widely used in the natural sciences, exist in angular and Cartesian form. Although these expansions are orderwise equivalent, it is difficult to…
Predictive local field theory for interacting active Brownian spheres in two spatial dimensions
Jens Bickmann, Raphael Wittkowski
We present a predictive local field theory for the nonequilibrium dynamics of interacting active Brownian particles with a spherical shape in two spatial dimensions. The theory is…