Abstract:The article presents the results of studies on the stability of dissipative structures (DS) arising in the resonant interaction of laser radiation with a nonlinear medium. Resonant interaction is modeled by the one dimensional complex Ginzburg-Landau equation with a nonconservative cubic–quintic nonlinearity. The areas of existence of stable DS solutions have been determined analytically using a variational approach and confirmed numerically by extensive numerical simulations.
“…Ψ (t, h) are given by (19). Let us present the operators V( ẑ, t), V( ẑ, t), W( ẑ, ŵ, t), and W( ẑ, ŵ, t) from (1) in the form of formal power series in ∆ ẑ and ∆ ŵ in a neighborhood of the trajectory z = Z(t).…”
Section: Moments Of Functions From the Class P T Hmentioning
confidence: 99%
“…The Lindblad master equation, which is also widely used for the study of open quantum systems, is derived from the microscopic dynamics [16,17] as opposed to the models under consideration that can be treated as macroscopic ones. The dissipative NLSE also arises in the description of solitons in nonlinear media such as the cavity of the mode-locked lasers (the so-called Haus master equation [18] that is the (1 + 1)-NLSE with a non-Hermitian term) and related models [19] including multidimensional [20] and nonlocal [21] ones.…”
The nonlinear Schrödinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a non-Hermitian term. Using the ideas of the Maslov method, we propose the method of constructing asymptotic solutions to this equation within the framework of semiclassically concentrated states. The semiclassical nonlinear evolution operator and symmetry operators for the leading term of asymptotics are derived. Our approach is based on the solutions of the auxiliary dynamical system that effectively linearizes the problem under certain algebraic conditions. The formalism proposed is illustrated with the specific example of the NLSE with a non-Hermitian term that is the model of an atom laser. The analytical asymptotic solution to the Cauchy problem is obtained explicitly for this example.
“…Ψ (t, h) are given by (19). Let us present the operators V( ẑ, t), V( ẑ, t), W( ẑ, ŵ, t), and W( ẑ, ŵ, t) from (1) in the form of formal power series in ∆ ẑ and ∆ ŵ in a neighborhood of the trajectory z = Z(t).…”
Section: Moments Of Functions From the Class P T Hmentioning
confidence: 99%
“…The Lindblad master equation, which is also widely used for the study of open quantum systems, is derived from the microscopic dynamics [16,17] as opposed to the models under consideration that can be treated as macroscopic ones. The dissipative NLSE also arises in the description of solitons in nonlinear media such as the cavity of the mode-locked lasers (the so-called Haus master equation [18] that is the (1 + 1)-NLSE with a non-Hermitian term) and related models [19] including multidimensional [20] and nonlocal [21] ones.…”
The nonlinear Schrödinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a non-Hermitian term. Using the ideas of the Maslov method, we propose the method of constructing asymptotic solutions to this equation within the framework of semiclassically concentrated states. The semiclassical nonlinear evolution operator and symmetry operators for the leading term of asymptotics are derived. Our approach is based on the solutions of the auxiliary dynamical system that effectively linearizes the problem under certain algebraic conditions. The formalism proposed is illustrated with the specific example of the NLSE with a non-Hermitian term that is the model of an atom laser. The analytical asymptotic solution to the Cauchy problem is obtained explicitly for this example.
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