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Complex noise in diffusion-limited reactions of replicating and competing species
Centro de Astrobiología (CSIC-INTA).
Centro de Astrobiología (CSIC-INTA).ORCID iD: 0000-0002-4492-9650
Centro de Astrobiología (CSIC-INTA).
2006 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 73, no 6, 066109Article in journal (Refereed) Published
Abstract [en]

We derive exact Langevin-type equations governing quasispecies dynamics. The inherent multiplicative noise has both real and imaginary parts. The numerical simulation of the underlying complex stochastic partial differential equations is carried out employing the Cholesky decomposition for the noise covariance matrix. This noise produces unavoidable spatiotemporal density fluctuations about the mean-field value. In two dimensions, the fluctuations are suppressed only when the diffusion time scale is much smaller than the amplification time scale for the master species

Place, publisher, year, edition, pages
American Physical Society, 2006. Vol. 73, no 6, 066109
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-65848DOI: 10.1103/PhysRevE.73.066109Scopus ID: 2-s2.0-33744954210OAI: oai:DiVA.org:ltu-65848DiVA: diva2:1144750
Available from: 2017-09-27 Created: 2017-09-27 Last updated: 2017-11-29Bibliographically approved

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Zorzano, María Paz
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