title: Quantum breathers in Heisenberg ferromagnetic chains with Dzyaloshinsky-Moriya interaction.
abstract: We present an analytical study on quantum breathers in one-dimensional ferromagnetic XXZ chains with Dzyaloshinsky-Moriya interaction by means of the time-dependent Hartree approximation and the semidiscrete multiple-scale method. The stationary localized single-boson wave functions are obtained and these analytical solutions are checked by numerical simulations. With such stationary localized single-boson wave functions, we construct quantum breather states. Furthermore, the role of the Dzyaloshinsky-Moriya interaction is discussed.
authors.affiliation: Department of Physics, Xiangtan University, Xiangtan 411105, People's Republic of China.
authors.forename: Bing
authors.initials: B
authors.lastname: Tang
authors.affiliation: College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou 416000, People's Republic of China.
authors.forename: De-Jun
authors.initials: DJ
authors.lastname: Li
authors.affiliation: Department of Physics, Xiangtan University, Xiangtan 411105, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Tang