Physics (Internal)

Freezing, aging, and coarsening in long range glasses

This event is part of the Biophysics/Condensed Matter Seminar Series.

Long range interactions can introduce frustration without any quenched randomness. In dislocation systems the logarithmic interaction has a dipole prefactor, changing sign depending on the relative orientation of the dislocations, giving rise to a dislocation glass. In perpendicularly magnetized films the dipolar interaction is antiferromagnetic, i.e. the triangle of any three spins is frustrated, resulting in a stripe glass. We analyze these two models with the concepts of modern glass physics. We analyze the aging behavior of the models through various correlation functions. We also identify growing length scales associated with spatial inhomogeneities.