A New class of integrable defects

Aug, 2009
24 pages
Published in:
  • J.Phys.A 42 (2009) 475203
e-Print:

Citations per year

2010201320162019202202468
Abstract: (arXiv)
An alternative Lagrangian definition of an integrable defect is provided and analyzed. The new approach is sufficiently broad to allow a description of defects within the Tzitzeica model, which was not possible in previous approaches, and may be generalizable. New, two-parameter, sine-Gordon defects are also described, which have characteristics resembling a pair of 'fused' defects of a previously considered type. The relationship between these defects and Backlund transformations is described and a Hamiltonian description of integrable defects is proposed.
Note:
  • 24 pages
  • defect: integrability
  • Lagrangian formalism
  • Baecklund transformation
  • field equations: Liouville
  • Hamiltonian formalism
  • constraint
  • sine-Gordon equation: soliton
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