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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Physics 1962
Lev Landau

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Lev Landau - Facts

Lev Davidovich Landau

Lev Davidovich Landau

Born: 22 January 1908, Baku, Russian Empire (now Azerbaijan)

Died: 1 April 1968, Moscow, USSR (now Russia)

Affiliation at the time of the award: Academy of Sciences, Moscow, USSR

Prize motivation: "for his pioneering theories for condensed matter, especially liquid helium"

Field: condensed matter physics, superfluidity

Prize share: 1/1

Work

When certain substances are cooled to very low temperatures, their properties undergo radical changes. At temperatures a couple of degrees above absolute zero, helium becomes superfluid and the liquid flows without friction. One of Lev Landau's many contributions within theoretical physics came in 1941, when he applied quantum theory to the movement of superfluid liquid helium. Among other things, he introduced the concept of quasiparticles as the equivalent of sound vibrations and vortexes. This allowed him to develop his theoretical explanation for superfluidity.

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