title: Tunneling mediated by 2D+1 conical waves in a 1D lattice.
abstract: The propagation of 2D+1 wave packets in 1D band gap systems shows that the interplay of periodicity and nonlinearity leads to the spontaneous formation of fast and slow conical localized waves. Such nonlinear tunneling has features that differ on the two edges of the band gap and it is characterized by the competition of bullets and nonlinear X waves.
authors.affiliation: School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, KY16 9SS, United Kingdom.
authors.forename: Andrea
authors.initials: A
authors.lastname: Di Falco
authors.forename: Claudio
authors.initials: C
authors.lastname: Conti
authors.forename: Stefano
authors.initials: S
authors.lastname: Trillo