Rudolf Peierls

Rudolf Peierls
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Name	Rudolf Peierls
Caption	Sir Rudolf Peierls in 1966
Birth date	05 June 1907
Birth place	Berlin, German Empire
Death date	19 September 1995
Death place	Oxford, England
Fields	Theoretical physics
Alma mater	University of Berlin, University of Munich, University of Leipzig
Doctoral advisor	Werner Heisenberg
Known for	Peierls transition, Peierls stress, Tube Alloys, Frisch–Peierls memorandum
Awards	Royal Medal (1959), Lorentz Medal (1962), Enrico Fermi Award (1980), Knighted (1968)
Spouse	Eugenia Kannegiesser

Rudolf Peierls was a German-born British physicist who made foundational contributions to solid-state physics, quantum mechanics, and nuclear physics. He played a pivotal role in the development of the atomic bomb during World War II as a key member of the Tube Alloys project and later the Manhattan Project. His long academic career, primarily at the University of Birmingham and later at the University of Oxford, established him as a leading figure in theoretical physics and a mentor to generations of scientists.

Early life and education

Born into a Jewish family in Berlin, he showed an early aptitude for mathematics and physics. He began his university studies at the University of Berlin before moving to the University of Munich and finally to the University of Leipzig, where he completed his doctorate in 1929 under the supervision of Werner Heisenberg. His early postdoctoral work included influential periods with Wolfgang Pauli in Zurich and Enrico Fermi in Rome, immersing him in the forefront of the new quantum theory. The rise of the Nazi Party in Germany led him to leave the country, first holding a position at the University of Manchester before settling in Britain.

Scientific contributions

Peierls made several lasting contributions to theoretical physics, particularly in the field of solid-state physics. In 1930, he predicted the Peierls transition, a distortion in one-dimensional metals that leads to an insulating state, a concept fundamental to the later understanding of quasi-one-dimensional conductors. He also formulated the concept of Peierls stress, describing the force needed to move a dislocation through a crystal lattice. During the 1930s, he collaborated with Hans Bethe on the theory of positron production and with Niels Bohr on nuclear reactions, significantly advancing the understanding of nuclear physics and quantum electrodynamics.

Work on the Manhattan Project

At the outbreak of World War II, Peierls and his colleague Otto Frisch, both refugees in Britain, performed a crucial calculation demonstrating the feasibility of an atomic bomb using separated uranium-235. Their 1940 document, the Frisch–Peierls memorandum, was a catalyst for the British Tube Alloys project, which Peierls led. He later became a key figure in the Manhattan Project, heading the theoretical physics division at the Los Alamos Laboratory alongside figures like Hans Bethe and Richard Feynman. His group was instrumental in solving critical problems related to implosion and the efficiency of nuclear weapons.

Later career and legacy

After the war, Peierls returned to Britain as a professor at the University of Birmingham, where he built a renowned school of theoretical physics. He later held a professorship at the University of Oxford. He was a vocal advocate for the peaceful use of nuclear energy and arms control, serving as a founding member of the Pugwash Conferences on Science and World Affairs. His honors included the Royal Medal, the Lorentz Medal, the Enrico Fermi Award, and a knighthood. He authored influential textbooks and trained many prominent physicists, leaving a profound legacy in both research and scientific policy.

Personal life

In 1931, he married the Russian-born physicist Eugenia Kannegiesser, who also worked on the Tube Alloys project; they had four children. The couple were known for their hospitality and intellectual salons, which fostered collaboration among scientists. A passionate musician, Peierls was an accomplished pianist. He remained active in scientific and public affairs until his death in Oxford in 1995, survived by his wife and their family.

Category:1907 births Category:1995 deaths Category:German theoretical physicists Category:British theoretical physicists Category:Manhattan Project people Category:Fellows of the Royal Society Category:Knights Bachelor