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David Khmelnitskii

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David E. Khmelnitskii is a Russian theoretical condensed matter physicist, notable for his achievements in mesoscopic physics.

Research activities[edit]

Prof David Khmelnitskii is a Senior Research Fellow of Trinity College and a member of the TCM group at Cambridge University since January 1991. He is also Emeritus Professor of The Theory of Condensed Matter at the Cavendish Laboratory[1]. Before that, starting from 1968, he conducted research in the broad field of condensed matter theory in the Landau Institute of Theoretical Physics, Moscow. His accomplishments are associated with the renormalization-group theory of critical phenomena, effects of disorder on phase transitions, the Quantum Hall Effect and coherent phenomena in disordered conductors, including weak localisation, anomalous magnetoresistance and mesoscopic fluctuations.[2]

In 1981, in collaboration with Boris Altshuler and Arkady Aronov, he investigated decoherence of electrons in the weak localization regime due to electron-electron interaction, and discovered that two distinct time scales, decoherence (dephasing) time and relaxation time, exist in one and two dimensions. (In three dimensions, these time scales coincide).[3]

In 1993 he was awarded the Hewlett Packard Europhysics Prize.[4]



  1. "Theory of Condensed Matter". Retrieved 2023-11-15.
  2. Administrator (2013-07-23). "Emeritus Professor David Khmelnitskii". Retrieved 2023-11-14.
  3. Altshuler, B L; Aronov, A G; Khmelnitsky, D E (1982-12-30). "Effects of electron-electron collisions with small energy transfers on quantum localisation". Journal of Physics C: Solid State Physics. 15 (36): 7367–7386. Bibcode:1982JPhC...15.7367A. doi:10.1088/0022-3719/15/36/018. ISSN 0022-3719.
  4. "Agilent Technologies Europhysics Prize" (PDF). Europhysics News. 37 (2): 27. Retrieved March 26, 2012.

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