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arxiv: nlin/0409034 · v1 · submitted 2004-09-19 · 🌊 nlin.SI · math-ph· math.AP· math.MP· physics.optics

The short pulse equation is integrable

classification 🌊 nlin.SI math-phmath.APmath.MPphysics.optics
keywords equationintegrablepulseshortchainconstructdescribesdiscover
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We prove that the Schafer-Wayne short pulse equation (SPE) which describes the propagation of ultra-short optical pulses in nonlinear media is integrable. First, we discover a Lax pair of the SPE which turns out to be of the Wadati-Konno-Ichikawa type. Second, we construct a chain of transformations which relates the SPE with the sine-Gordon equation.

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