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BERNARDO SPAGNOLO

Noise-enhanced stability of sine-Gordon breathers

  • Autori: De Santis, D; Guarcello, C; Spagnolo, B; Carollo, A; Valenti, D
  • Anno di pubblicazione: 2023
  • Tipologia: Articolo in rivista
  • OA Link: http://hdl.handle.net/10447/619175

Abstract

A noise-induced enhancement of the breather stability in a lossy, stochastic sine-Gordon system is discussed. The numerical solutions indicate that a spatially uniform noisy source enables a stationary breather to survive way beyond its deterministic lifetime. An average characteristic time for the breather is defined, whose values vary nonmonotonically as a function of the noise strength, while being almost unaffected by the mode's initial phase.