Illustration of Phonon

1932 Phonon

The book of science

Tom Sharp

Igor Tamm physics Illustration of Phonon


Igor Tamm proposed that an excited state of interacting particles in a solid or liquid would form a quasiparticle and vibrate at a common frequency.

Scientific work

Igor Tamm proposed the concept of surface states, electronic states found only near surfaces, and the idea that protons interact with neutrons by exchanging massive particles later called mesons. He worked with Ilya Frank to explain Cherenkov radiation using Einstein’s special theory of relativity. He led the Soviet’s effort to build a hydrogen bomb in the secret city of Sarov, and with Andrei Sakharov he proposed the tokamak for magnetic confinement of thermonuclear fusion.


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