Dmitri Igorewitsch Djakonow

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Dmitri Igorewitsch Djakonow , mostly quoted in English as Diakonov, ( Russian Дмитрий Игоревич Дьяконов ; born March  30, 1949 in Leningrad ; † December 26, 2012 ) was a Russian physicist .

Life

Djakonow studied at the Leningrad State University and graduated in 1972 with a diploma (with distinction). In 1976 he received his doctorate at the Institute for Nuclear Physics (PNPI) in Gatchina near Leningrad with "Quantum Effects in Spontaneous Symmetry Breaking in Gauge Theories" and obtained his habilitation there (Russian doctorate) in 1986 with "On the theory of the instanton vacuum and low-lying hadronic states in the QCD" . He became senior scientist and eventually director of the Institute of Nuclear Physics and also taught as a professor at the State Polytechnic University in Saint Petersburg from 1993 to 1996 . From 1997 to 2005 he was at Nordita in Copenhagen and in 2004 visiting professor at Pennsylvania State University and senior researcher at the Thomas Jefferson National Accelerator Facility . From 2005 he was again at the Institute for Nuclear Physics in Saint Petersburg as deputy head of the theory department and head of the theoretical elementary particle physics department. The institute is part of the Kurchatov Institute . In addition, he recently taught part-time as a professor at the Academic University in Saint Petersburg ( Russian Санкт-Петербургский Академический университет ), a university of the Russian Academy of Sciences.

His research focused on particle physics , especially in the field of quantum chromodynamics (QCD, the theory used today for the strong interaction ), where he researched the instanton structure of the QCD vacuum and the mechanisms of quark confinement . He also dealt with baryon asymmetry in the universe, major unified theories and quantum gravity , Bose-Einstein condensates of ultra-cold atoms in optical lattices.

In 1997 Djakonov predicted the existence of pentaquarks together with V. Petrov and M. Polyakov. The first experimental observation of the Θ + was reported in July 2003 by Takashi Nakano at the University of Osaka , Japan and confirmed by Ken Hicks at the Thomas Jefferson National Accelerator Facility, Virginia , USA . Other groups could not reproduce these data, so the existence of pentaquarks was long disputed.

In 1995 he headed the Enrico Fermi summer school on Lake Como and from 2008 to 2010 he was Mercator visiting professor at the Ruhr University in Bochum .

From 1997 to 2005 he was editor of Physica Scripta .

He was a member of the Academia Europaea (2011), the New York Academy of Sciences and a member of the American Physical Society (2004).

Web links

Individual evidence

  1. ↑ PNPI, official website ( Memento from November 4, 2015 in the Internet Archive )
  2. ↑ Dmitri Diakonov, Victor Petrov and Maxim V. Polyakov: Exotic anti-decuplet of baryons: Prediction from chiral solitons. In: Journal of Physics . Volume A359, 1997, pp. 305-314, hep-ph / 9703373 .
personal data
SURNAME Djakonov, Dmitri Igorevich
ALTERNATIVE NAMES Diakonov, Dmitri (English transcription); Дьяконов, Дмитрий Игоревич (Russian)
BRIEF DESCRIPTION Russian physicist
DATE OF BIRTH March 30, 1949
PLACE OF BIRTH Leningrad
DATE OF DEATH December 26, 2012