Tom Kibble
British physicist (1932–2016)
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Through Cosmology and Phase transition
Early life and education
Kibble was born in Madras, in the Madras Presidency of British India, on 23 December 1932. He was the son of the statistician Walter F. Kibble, and the grandson of William Bannerman, an officer in the Indian Medical Service, and the author Helen Bannerman. His father was a mathematics professor at Madras Christian College, and Kibble grew up playing on the grounds of the college and solving mathematics puzzles his father gave him. He was educated at Doveton Corrie School in Madras and then in Edinburgh, Scotland, at Melville College and at the University of Edinburgh. He graduated from the University of Edinburgh with a BSc in 1955, MA in 1956 and a PhD in 1958.
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Career
Kibble worked on mechanisms of symmetry breaking, phase transitions and the topological defects (monopoles, cosmic strings or domain walls) that can be formed.
He is most noted for his co-discovery of the Higgs mechanism and Higgs boson with Gerald Guralnik and C. R. Hagen. As part of Physical Review Letters 50th anniversary celebration, the journal recognised this discovery as one of the milestone papers in PRL history. He was awarded the American Physical Society's 2010 J. J. Sakurai Prize for Theoretical Particle Physics.
While Guralnik, Hagen, and Kibble are widely considered to have authored the most complete of the early papers on the Higgs theory, they were controversially not included in the 2013 Nobel Prize in Physics.
In 2014, Nobel Laureate Peter Higgs expressed disappointment that Kibble had not been chosen to share the Nobel Prize with François Englert and himself.
Kibble pioneered the study of topological defect generation in the early universe. The paradigmatic mechanism of defect formation across a second-order phase transition is known as the Kibble-Zurek mechanism. His paper on cosmic strings introduced the phenomenon into modern cosmology.
He was one of the two co-chairs of an interdisciplinary research programme funded by the European Science Foundation (ESF) on Cosmology in the Laboratory (COSLAB) which ran from 2001 to 2005. He was previously the coordinator of an ESF Network on Topological Defects in Particle Physics, Condensed Matter & Cosmology (TOPDEF).
Personal life and voluntary roles
Kibble was married to Anne Allan from 1957 until her death in 2005. Kibble had three children.
In the 1950s and 1960s, Kibble became concerned about the nuclear arms race and from 1970 he took leading roles in several organisations promoting scientists' social responsibility. In the period 1970–1977, he was a national committee member, then treasurer, then chair of the British Society for Social Responsibility in Science; from 1976 he was a trustee of the Science and Society Trust; from 1981 to 1991 he was a national coordinating committee member, then vice-chair, then chair of Scientists against Nuclear Arms; he was a sponsor of Scientists for Global Responsibility; and from 1988 he was chair, and later a trustee, of the Martin Ryle Trust. He was chair of the organising committee of the Second International Scientists' Congress, held at Imperial College in 1988, and was a co-editor of the proceedings.
In retirement, Kibble chaired the Richmond branch of the Ramblers Association.
He died in London on 2 June 2016 at the age of 83.