Hawking-like emission in kink-soliton escape from a potential well.

Gonzalez, J. A. and Garcia-Nustes, M. A. and Sanchez, A. and McClintock, Peter V. E. (2008) Hawking-like emission in kink-soliton escape from a potential well. New Journal of Physics, 10 (113015). pp. 1-19. ISSN 1367-2630

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Abstract

The escape of solitons over a potential barrier is analysed within the framework of a nonlinear Klein–Gordon equation. It is shown that the creation of a kink–antikink pair near the barrier through an internal mode instability can be followed by escape of the kink in a process analogous to Hawking radiation. These results have important implications in a wider context, including stochastic resonance and ratchet systems, which are also discussed.