Speaker
Description
We formulate molecular dynamics for spin systems by time-dependent SU(2) spinor parametrized with two real angles. With central interaction between particles, the total angular momentum and the total spin are conserved as well as the total energy and momentum.But with inclusion of spin-orbit interaction the total angular momentum and total spin become time-dependent quantity. They convert to each others in time. We show this behavior in the simulation of an isolated system of several number of particles. It will be interesting to compare the experimentally measured spin polarization in the participant region of non-central heavy-ion collisions with this calculation results to see the effects of spin-orbit interaction on the nuclear collision processes.