l fk noise generated by scaled Brownian motion

Z. Gingl, L. B. Kiss, R. Vajtai

Research output: Contribution to journalArticle

8 Citations (Scopus)


A new approach to l fk (k ≈ 1) noises is presented. Our model is based on a single elementary process: on the one dimensional Brownian motion with time-dependent position coordinate x(t). According to computer modellings (carried out over five decades of frequency) a new random process defined by y(t) = gk[x(t)] (where gk (x) is a rather simple function) has a 1/fk power-density spectrum. The factor k can be varied between 0 and 2. We note that this approach can not be considered as the usual 1/fk noise models. Superposition of Lorentzian fluctuations or other distribution of time constants are not employed. Physical aspects are presented.

Original languageEnglish
Pages (from-to)765-767
Number of pages3
JournalSolid State Communications
Issue number9
Publication statusPublished - Sep 1989

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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