Abstract
We investigate theoretically the interaction of dark solitons in materials with a spatially nonlocal nonlinearity. In particular we do this analytically and for arbitrary degree of nonlocality. We employ the variational technique to show that nonlocality induces an attractive force in the otherwise repulsive soliton interaction.
- Received 24 May 2010
DOI:https://doi.org/10.1103/PhysRevA.82.013826
©2010 American Physical Society