| Title: | Topologically determined optimal stochastic resonance responses of spatially embedded networks |
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| Authors: | ID Gosak, Marko (Author)
ID Korošak, Dean (Author)
ID Marhl, Marko (Author) |
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| Files: |  New_Journal_of_Physics_2011_Gosak,_Korosak,_Marhl_Topologically_determined_optimal_stochastic_resonance_responses_of_spatially_embedded.pdf (2,08 MB)
MD5: CD73821CE0D968112D36C457821ABC62
PID: 20.500.12556/dkum/fd300731-2261-47b0-9603-26392044ad93
 http://stacks.iop.org/1367-2630/13/i=1/a=013012?key=crossref.5cd62d33d20126c6b370b6b9cef1a5f5
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FNM - Faculty of Natural Sciences and Mathematics
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| Abstract: | We have analyzed the stochastic resonance phenomenon on spatial networks of bistable and excitable oscillators, which are connected according to their location and the amplitude of external forcing. By smoothly altering the network topology from a scale-free (SF) network with dominating long-range connections to a network where principally only adjacent oscillators are connected, we reveal that besides an optimal noise intensity, there is also a most favorable interaction topology at which the best correlation between the response of the network and the imposed weak external forcing is achieved. For various distributions of the amplitudes of external forcing, the optimal topology is always found in the intermediate regime between the highly heterogeneous SF network and the strong geometric regime. Our findings thus indicate that a suitable number of hubs and with that an optimal ratio between short- and long-range connections is necessary in order to obtain the best global response of a spatial network. Furthermore, we link the existence of the optimal interaction topology to a critical point indicating the transition from a long-range interactions-dominated network to a more lattice-like network structure. |
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| Keywords: | physics, stochastic resonance, complex networks |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Article acceptance date: | 03.10.2010 |
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| Publication date: | 12.01.2011 |
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| Publisher: | IOP Publishing |
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| Year of publishing: | 2011 |
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| Number of pages: | str. 1-16 |
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| Numbering: | Letn. 13, št. 1 |
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| PID: | 20.500.12556/DKUM-35346  |
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| ISSN: | 1367-2630 |
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| UDC: | 53 |
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| ISSN on article: | 1367-2630 |
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| COBISS.SI-ID: | 18087432 |
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| DOI: | 10.1088/1367-2630/13/1/013012 |
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| NUK URN: | URN:SI:UM:DK:IHZTLYNS |
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| Publication date in DKUM: | 07.06.2012 |
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| Views: | 1987 |
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| Downloads: | 835 |
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| Metadata: |    |
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| Categories: | Misc.
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