A unified formula of a series of breather solitons for the nonlinear Schrödinger equation

In this paper, a unified formula of a series of breather soliton solutions for the standard (1+1) dimension nonlinear Schrodinger equation is obtained through Exp-function method. Further, by using appropriate transformation, based on solutions obtained, breather soliton solutions of the variable coefficient nonlinear Schrodinger equation are also obtained. One free function of time t and several arbitrary parameters are involved to generate abundant wave structures.