A new class of integrable defects

Details A new class of integrable defects A new class of integrable defects

2009-08-21

arxiv.org/abs/0908.3126v1

J.Phys.A42:475203,2009

Physics

High Energy Physics

High Energy Physics - Theory

24 pages

Scientific paper

10.1088/1751-8113/42/47/475203

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.

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