Symmetric and asymmetric solitons in linearly coupled Bose-Einstein condensates trapped in optical lattices
Symmetric and asymmetric solitons in linearly coupled Bose-Einstein condensates trapped in optical lattices
We study spontaneous symmetry breaking in a system of two parallel quasi-one-dimensional traps (cores), equipped with optical lattices (OLs) and filled with a Bose-Einstein condensate (BEC). The cores are linearly coupled by tunneling (the model may also be interpreted in terms of spatial solitons in parallel planar optical waveguides with …