Seminar series
Date
Thu, 04 Feb 2010
Time
16:30 -
17:30
Location
DH 1st floor SR
Speaker
Jonathan Wattis
Organisation
Nottingham
The FPU lattice is a coupled system of ordinary differential equations in which each atom in a chain is coupled to its nearest neighbour by way of a nonlinear spring.
After summarising the properties of travelling waves (kinks) we use asymptotic analysis to describe more complicate envelope solutions (breathers). The interaction of breathers and kinks will then be analysed. If time permits, the method will be extended to two-dimensional lattices.