Shlomo Havlin

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Shlomo Havlin (born July 21, 1942 in Jerusalem ) is an Israeli theoretical physicist.

Havlin

Life

Havlin studied at Bar Ilan University (doctorate 1972) and Tel Aviv University . From 1972 he was a lecturer at Bar-Ilan University, where he became an associate professor in 1981 and was given a full professorship in 1984. From 1984 to 1988 he was chairman of the physics faculty and from 1999 to 2001 dean of the faculty for exact sciences. Since 1998 he has been director of the Minerva Centers for Mesoscopic, Fractals and Neural Networks.

Havlin dealt with fractals and disordered systems (and chemical reactions, diffusion and transport in such systems), random paths, percolation , growth on surfaces, statistical mechanics of polymers, networks and dynamics of complex systems. With applications, for example, on the stability of the Internet under attack, in cardiology (where he found signs of multifractality in a healthy state, among other things), in granular matter, in traffic flows, growth of cities and companies, and in climate research. In the laudation for the Lilienfeld Prize, his contribution to the understanding of anomalous transport in disordered media, the discovery of long-range correlations in DNA sequences and physiological data (with the development of the DFA method) and the evidence of a new universality class for networks (which is reflected in the The absence of a percolation threshold and new critical exponents are reflected), in scale-free networks depending on the value of the number of connections parameter.

He investigated scale-free networks that occur naturally in many systems (and in large networks such as the Internet) and the number of nodes connected to them follows a power law (with exponents mostly between 2 and 3). Compared to grids or small world networks, they are particularly robust against the removal of nodes. With Cohen he showed that these have a much smaller mean distance than regular random networks or small world networks. Havlin used a renormalization group analysis to show the self-similarity of complex, scale-free networks.

Together with Armin Bunde and others, he applied the DFA analysis to temperature fluctuations in the atmosphere and thereby criticized common global climate models because they do not reproduce the observed scaling behavior. He also examined the stochastic and fractal properties of climate records in ice cores over the past 400,000 years and other climate data such as Nile floods with Bunde and others, finding long-term correlations for extreme events.

From 1996 to 1999 he was President of the Israel Physical Society. In 2009 he received the Chaim Weizmann Prize for Exact Sciences. In 2006 he received the Nicholson Medal of the American Physical Society and in 2010 the Julius Edgar Lilienfeld Prize . In 1998 and again in 2002 and 2006 he received the Humboldt Senior Scientist Award. In 2018 Havlin was awarded the Israel Prize . He is a fellow of the American Physical Society .

Fonts

  • with Armin Bunde (editor): Fractals and Disorder . Springer, 1992, 2nd edition 1996
  • same (editors): Fractals in Science . Springer, 1994, 2nd edition 1995
  • with Daniel Ben-Avraham: Diffusion and Reactions in Fractals and Disordered Systems . Cambridge University Press, 2000, 2nd edition 2005
  • same: diffusion in disordered media . In: Advances in Physics , Volume 36, 1987, p. 695 (published again in Volume 51, 2002, p. 187)
  • with Reuven Cohen: Complex Networks, Structure, Robustness and Function . Cambridge University Press, 2009

Web links

Individual evidence

  1. ^ Havlin, Cohen, Ben-Avraham, Erez: Resilience of the internet in random breakdown . In: Physical Review Letters , Volume 85, 2000, p. 4626. The same: Breakdown of the internet under intentional attack . In: Phys.Rev.Lett. , Volume 86, 2001, p. 3682
  2. ↑ Havlin, Ivanov, Stanley et al. a .: Multifractality in human heartbeat dynamics . In: Nature , 1999, arxiv : cond-mat / 9905329
  3. ↑ Peng, Buldyrev, Goldberger, Havlin, Sciortino, Simons, Stanley: Long range correlations in nucleotide sequences . In: Nature , Volume 356, 1992, p. 168
  4. ↑ C.-K. Peng, SV Buldyrev, S. Havlin, M. Simons, HE Stanley, AL Goldberger: Detrended Fluctuation Analysis . In: Phys. Rev. E , 49, 1994, p. 1685
  5. ^ Cohen, ben-Avraham, Havlin: Percolation critical exponents in Scale Free Networks . In: Phys. Rev. E , Volume 66, 2002, p. 036113, arxiv : cond-mat / 0202259
  6. ^ Cohen, Havlin: Scale free networks are ultrasmall . In: Phys.Rev.Lett. , Volume 90, 2003, p. 058701
  7. ↑ song makse, Havlin, self similarity of complex networks. In: Nature , Volume 433, 2005, p. 392, arxiv : cond-mat / 0503078
  8. ^ Govindan, Bunde, Havlin: Volatility in atmospheric temperature variability . Preprint 2002. In: Physica A , Volume 318, 2003, p. 529, arxiv : cond-mat / 0209687 . As well as Havlin, Bunde, Schellnhuber , Govinda, Vyushin, Brenner: Global climate models violate scaling of the observed atmospheric volatility . Preprint 2002. In: Physical Review Letters , Volume 89, 2002, p. 028501 arxiv : cond-mat / 0206040
  9. ↑ Bunde, Jan Eichner, JW Kantelhardt, Havlin: Long-term memory: A natural mechanism for the clustering of extreme events and anomalous residual times in climate records . In: Phys. Rev. Lett. , Volume 94, 2005, p. 048701
personal data
SURNAME Havlin, Shlomo
BRIEF DESCRIPTION Israeli physicist
DATE OF BIRTH July 21, 1942
PLACE OF BIRTH Jerusalem