1306.3038 (Reza Torabi et al.)

The effect of Dirac phase on acoustic vortex in media with screw
dislocation    [PDF]

Reza Torabi, Zahra Rezaei

We study acoustic vortex in media with screw dislocation using the Katanaev-Volovich theory of defects. It is shown that the screw dislocation affects the beam's orbital angular momentum and changes the acoustic vortex strength. This change is a manifestation of topological Dirac phase and is robust against fluctuations in the system.

View original: http://arxiv.org/abs/1306.3038