Welcome to the Gollub Research Lab in the Department of Physics at Haverford College (also affiliated with the University of Pennsylvania).

Gollub's research is in the general area of Nonlinear Physics, which is concerned with the mesoscopic and macroscopic behavior of complex systems. Often these systems are described by nonlinear partial differential equations such as the Navier-Stokes equations of fluid motion.

His group has conducted experimental work on many aspects of nonlinear systems, addressing questions such as these: 

• How can we use topological ideas to understand the onset of chaitic space-time motion in fluids? 
• How do particles suspended in a fluid move? How do swimming micro-organisms affect the fluid around them? 
• To what extent are granular flows similar to or different from ordinary fluids. .

Our work is supported by the National Science Foundation, Division of Materials Research under grant DMR-0803153. (disclaimer)