Multi-soliton energy transport in anharmonic lattices
  We demonstrate the existence of dynamically stable multihump solitary waves in polaron-type models describing interaction of envelope and lattice excitations. In comparison with the earlier theory of multihump optical solitons [see Phys. Rev. Lett. {\bf 83}, 296 (1999)], our analysis reveals a novel physical mechanism for the formation of stable multihump solitary waves in nonintegrable multi-component nonlinear models. 
Elena A. Ostrovskaya, Serge F. Mingaleev, Yuri S. Kivshar, Yuri B.   Gaididei, and Peter L. Christiansen