Valentin Franke Explained

Valentin Franke
Birth Date:1926 2, df=y
Nationality:Soviet, Russian
Fields:Theoretical physics
Workplaces:Saint Petersburg State University
Alma Mater:Leningrad State University
Doctoral Advisor:Yury Novozhilov
Known For:One of the authors of the FGKLS equation (Lindblad equation)

Valentin Alfredovich Franke (Russian: Валенти́н Альфре́дович Фрáнке) (born 16 February 1926) is a Soviet–Russian theoretical physicist, D. Sc., retired professor of the High Energy & Elementary Particle Physics Department of Saint Petersburg State University.

Biography

V. A. Franke graduated from Kyiv Polytechnic Institute in 1949. After that he was distributed to a power plant in Amur Oblast, Russian Far East. In 1954 he externally graduated from Leningrad State University and then worked in Institute of Labor Protection in Leningrad.[1]

In 1962 V. A. Franke joined the physical faculty of LSU. He obtained his PhD under the supervision of Yury Novozhilov in 1965 and was habilitated in 1984. He was a professor of High Energy & Elementary Particle Physics Department until his retirement in 2020.

Scientific and educational activity

V. A. Franke is working in the fields of elementary particle physics, quantum mechanics and theory of gravitation. He wrote more than 70 papers on these topics.

In 1976 V. A. Franke obtained the general form of the renowned master equation for the evolution of density matrix. This equation was derived independently and simultaneously by V. A. Franke,[2] G. Lindblad[3] and V. Gorini, A. Kossakowski and E. C. G. Sudarshan[4] (see [5] [6]). FGKLS (Franke-Gorini-Kossakowski-Lindblad-Sudarshan) equation plays an important role in the description of open quantum systems and the quantum measurement theory. V. A. Franke himself considered this equation as a natural generalisation of standard quantum mechanics, whose validity has to be proven experimentally.[7]

Since 1981 V. A. Franke and his colleagues have been working on the light front quantization of the Yang—Mills theory. This approach proves itself useful in non-perturbative description of quantum chromodynamics.[8]

After the death of his long-time friend and colleague, Yuri Yappa, V. A. Franke had completed and edited his unfinished monograph on the spinor theory.[9]

References

  1. Web site: Valentin A. Franke.
  2. Franke. V. A.. 1976. On the general form of the dynamical transformation of density matrices. Theoretical and Mathematical Physics. en. 27. 2. 406–413. 10.1007/BF01051230. 123168620 . 0040-5779.
  3. Lindblad. G.. 1976. On the generators of quantum dynamical semigroups. Communications in Mathematical Physics. en. 48. 2. 119–130. 10.1007/BF01608499. 55220796 . 0010-3616.
  4. Gorini. V.. Kossakowski. A.. Sudarshan. E. C. G.. 1976. Completely positive dynamical semigroups of N‐level systems. Journal of Mathematical Physics. 17. 5 . 821. 10.1063/1.522979.
  5. Chruściński. Dariusz. Pascazio. Saverio. 2017. A Brief History of the GKLS Equation. Open Systems & Information Dynamics. en. 24. 3. 1740001. 10.1142/S1230161217400017. 1230-1612. 1710.05993. 90357 .
  6. Andrianov. A A. Ioffe. M V. Novikov. O O. 2019-10-18. Supersymmetrization of the Franke–Gorini–Kossakowski–Lindblad–Sudarshan equation. Journal of Physics A: Mathematical and Theoretical. 52. 42. 425301. 10.1088/1751-8121/ab4338. 1751-8113. 1901.03848. 153312733 .
  7. Franke. V. A.. 2006. The foundations of quantum theory and its possible generalizations. Proceedings of the 15th International V. A. Fock School for Advances of Physics 2005. Novozhilov. V.. SPbU Publ.. 2103.05374.
  8. Bakker. B.L.G.. Bassetto. A.. Brodsky. S.J.. Broniowski. W.. Dalley. S.. Frederico. T.. Głazek. S.D.. Hiller. J.R.. Ji. C.-R.. Karmanov. V.. Kulshreshtha. D.. 3. 2014. Light-front quantum chromodynamics. Nuclear Physics B - Proceedings Supplements. en. 251-252. 165–174. 10.1016/j.nuclphysbps.2014.05.004. 1309.6333. 2014NuPhS.251..165B . 117029089 .
  9. Book: Yappa, Yu. A.. An Introduction to Spinor Theory and Its Applications in Physics. SPb State University Publ.. 2004. 5-288-01951-7. Franke. V. A.. Saint Petersburg.