Advertisement

Long-time relaxation processes in the nonlinear Schrödinger equation

  • Yu. N. Ovchinnikov
  • I. M. Sigal
Electronic Properties of Solid

Abstract

The nonlinear Schrödinger equation, known in low-temperature physics as the Gross-Pitaevskii equation, has a large family of excitations of different kinds. They include sound excitations, vortices, and solitons. The dynamics of vortices strictly depends on the separation between them. For large separations, some kind of adiabatic approximation can be used. We consider the case where an adiabatic approximation can be used (large separation between vortices) and the opposite case of a decay of the initial state, which is close to the double vortex solution. In the last problem, no adiabatic parameter exists (the interaction is strong). Nevertheless, a small numerical parameter arises in the problem of the decay rate, connected with an existence of a large centrifugal potential, which leads to a small value of the increment. The properties of the nonlinear wave equation are briefly considered in the Appendix A.

Keywords

Vortex Soliton Theoretical Physic Topological Charge Nonlinear Wave Equation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Yu. N. Ovchinnikov and I. M. Sigal, Nonlinearity 11, 1277 (1998).CrossRefzbMATHADSMathSciNetGoogle Scholar
  2. 2.
    Yu. N. Ovchinnikov and I. M. Sigal, Nonlinearity 11, 1295 (1998).CrossRefzbMATHADSMathSciNetGoogle Scholar
  3. 3.
    Yanzhi Zhang, Weizhu Bao, and Qiang Du, Numerical Simulation of Vortex Dynamics in Ginzburg-Landau-Schrödinger Equation (Preprint of the National University of Singapore, Singapore, 2007).Google Scholar
  4. 4.
    P. H. Roberts and J. Grant, J. Phys. A: Gen. Phys. 4, 55 (1971); C. A. Jones, S. J. Putterman, and P. H. Roberts, J. Phys. A: Math. Gen. 19, 2991 (1986).CrossRefADSGoogle Scholar
  5. 5.
    S. V. Manakov, V. E. Zakharov, A. A. Bordag, A. R. Its, and V. B. Matveev, Phys. Lett. A 63, 205 (1977).CrossRefADSGoogle Scholar
  6. 6.
    E. A. Kuznetsov and J. J. Rasmussen, Phys. Rev. E: Stat. Phys., Plasmas, Fluids, Relat. Interdiscip. Top. 51, 4479 (1995).CrossRefGoogle Scholar
  7. 7.
    Yu. N. Ovchinnikov and I. M. Sigal, Zh. Eksp. Teor. Fiz. 126(5), 1249 (2004) [JETP 99 (5), 1090 (2004)].MathSciNetGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  1. 1.Max-Planck Institute for Physics of Complex SystemDresdenGermany
  2. 2.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia
  3. 3.University of TorontoTorontoCanada
  4. 4.University of Notre DameNotre DameUSA

Personalised recommendations