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  Wave initiation through spatiotemporally controllable perturbations

Wolff, J., Papathanasiou, A. G., Rotermund, H. H., Ertl, G., Katsoulakis, M. A., Li, X., et al. (2003). Wave initiation through spatiotemporally controllable perturbations. Physical Review Letters, 90(14): 148301. doi:10.1103/PhysRevLett.90.148301.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-1080-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0006-8A75-B
Genre: Journal Article

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e148301.pdf (Publisher version), 143KB
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2003
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 Creators:
Wolff, Janpeter1, Author           
Papathanasiou, Athanasios G.1, Author           
Rotermund, Harm H.1, Author           
Ertl, Gerhard1, Author           
Katsoulakis, Markos A., Author
Li, Xiujiang, Author
Kevrekidis, Ioannis G., Author
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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Free keywords: Pattern-formation; Stochastic resonance; Excitable media; Subexcitable media; Chemical-system; Co oxidation; Propagation; Feedback; Noise; Platinum
 Abstract: We study the initiation of pulses and fronts in a two-dimensional catalytic reaction–diffusion system: CO oxidation on Pt(110). Using a computer-controlled mobile focused laser beam, we impart various patterns (in space and time) of localized temperature "kicks" to the surface. We explore, and also rationalize through modeling, the cooperativity of such individually subcritical perturbations in both the excitable and the bistable regime.

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Language(s): eng - English
 Dates: 2003-04-11
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 24108
DOI: 10.1103/PhysRevLett.90.148301
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Title: Physical Review Letters
  Other : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y., etc. : American Physical Society.
Pages: - Volume / Issue: 90 (14) Sequence Number: 148301 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406