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Scaling behavior in a stochastic self-gravitating system
Number of Authors: 1
2003 (English)Report (Refereed)
Abstract [en]

A system of stochastic differential equations for the velocity and density of a classical self-gravitating matter is investigated by means of the field theoretic renormalization group. The existence of two types of large-scale scaling behavior, associated to physically admissible fixed points of the renormalization-group equations, is established. Their regions of stability are identified and the corresponding scaling dimensions are calculated in the one-loop approximation (first order of the epsilon expansion). The velocity and density fields have independent scaling dimensions. Our analysis supports the importance of the rotational (non-potential) components of the velocity field in the formation of those scaling laws.

Place, publisher, year, edition, pages
Swedish Institute of Computer Science , 2003, 1. , 6 p.
Series
SICS Technical Report, ISSN 1100-3154 ; 2003:09
Keyword [en]
Self-gravitating matter, Renormalization group, Scaling behavior
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:ri:diva-22042OAI: oai:DiVA.org:ri-22042DiVA: diva2:1041584
Available from: 2016-10-31 Created: 2016-10-31

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Computer and Information Science

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