Description
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Title
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Lev Landau – Soviet physicist.
Illustrated Envelop with original stamp and FDC cancellation |
| Description | Lev Davidovich Landau (22 January 1908 – 1 April 1968) was a Soviet physicist who made fundamental contributions to many areas of theoretical physics.
His accomplishments include the independent co-discovery of the density matrix method in quantum mechanics (alongside John von Neumann), the quantum mechanical theory of diamagnetism, the theory of superfluidity, the theory of second-order phase transitions, the Ginzburg–Landau theory of superconductivity, the theory of Fermi liquid, the explanation of Landau damping in plasma physics, the Landau pole in quantum electrodynamics, the two-component theory of neutrinos, and Landau’s equations for S matrix singularities. He received the 1962 Nobel Prize in Physics for his development of a mathematical theory of superfluidity that accounts for the properties of liquid helium II at a temperature below 2.17 K (−270.98 °C). |
| Type | Illustrated Envelop with original stamp and FDC cancellation “75 years anniversary of the birth” |
| Condition: | Good |
| Edges/Corners | Fine |
| Used/Unused | FDC Cancellation, Moscow, 22.01.1983
Registered, Cancellation, Moscow, 22.01.1983 |
| Published by/for: | Ministry of Communications, 1983 |
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