The Generalized non-linear Schrodinger model on the interval

Jun, 2007
33 pages
Published in:
  • Nucl.Phys.B 790 (2008) 465-492
e-Print:

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Abstract: (Elsevier)
The generalized ( 1 + 1 ) - D non-linear Schrödinger (NLS) theory with particular integrable boundary conditions is considered. More precisely, two distinct types of boundary conditions, known as soliton preserving (SP) and soliton non-preserving (SNP), are implemented into the classical g l N NLS model. Based on this choice of boundaries the relevant conserved quantities are computed and the corresponding equations of motion are derived. A suitable quantum lattice version of the boundary generalized NLS model is also investigated. The first non-trivial local integral of motion is explicitly computed, and the spectrum and Bethe ansatz equations are derived for the soliton non-preserving boundary conditions.
  • Schroedinger equation: nonlinear
  • dimension: 2
  • boundary condition
  • integrability
  • Hamiltonian formalism
  • symmetry breaking
  • Yang-Baxter equation
  • soliton
  • Bethe ansatz
  • lattice