Stephan's Research Interests
- Accelerator Physics
- Dynamical Systems
- Foundations of Physics
- Foundations of Quantum Mechanics
- Gravitation
- Mechanics
- Nonlinear Dynamics and Stochasticity
- Nonlinear dynamics
- Physics
- Physics of Intense Charged Particle Beams
- Plasma Physics
- Quantum Physics
- Relativity
- Statistical Mechanics
- Theoretical Physics





