Ian Grant (physicist) on:
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Ian Philip Grant, DPhil; FRS; CMath; FIMA, FRAS, FInstP (born 15 December 1930) is a 
St Albans School, Hertfordshire (1939-1948). Open Scholar in Natural Science , Wadham College Oxford, MA (Mathematics) (1951). Clarendon Laboratory,
UKAEA. Mathematical Physics Division, Aldermaston. Senior Scientific officer (1957-1962); Principal Scientific Officer (1962-1964).
Joint Research Fellowship,
Professor of Mathematical Physics, University of Oxford
now Emeritus Professor.(1992-1998) Visiting Professor, Department of Applied Mathematics and Theoretical Physics, University of Cambridge. (2013-)
Professor Ian Grant has made fundamental contributions to the development of the mathematical theory on relativistic effects in atomic physics, of importance for detailed studies of all atomic systems and particularly for heavy atoms and for highly ionised atoms in laboratory and astronomical plasmas. He has also been instrumental in the creation of computer codes that are used worldwide (in particular GRASP) and have had a major impact on the understanding of both the foundations of the relativistic theory of many electron systems and on the precision of theoretical interpretation of a variety of properties of atoms. Professor Grant and his co-workers extended this approach to the relativistic modelling of molecular electronic structure and the development of the BERTHA computer package. Further research work included studies of electron scattering from heavy atoms and of the structures of molecules containing heavy atoms, culminating in the creation of the DARC computer package, integrating modules designed for calculations using relativistic R-matrix approach and GRASP. He also led important earlier work on radiative transfer in stellar and planetary atmospheres.
Professor Grant’s book Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation reviews the field of relativistic atomic and molecular structure to the mid-2000s.
British
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mathematical physicist. He is Emeritus Professor of Mathematical Physics at the University of Oxford and was elected a fellow of the Royal Society
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...
in 1992. He is a pioneer in the field of computational physics
Computational physics is the study and implementation of numerical analysis to solve problems in physics for which a quantitative theory already exists. Historically, computational physics was the first application of modern computers in science, ...
and is internationally recognised as the principal author of GRASP, the General Relativistic Atomic Structure Program.
University of Oxford
, mottoeng = The Lord is my light
, established =
, endowment = £6.1 billion (including colleges) (2019)
, budget = £2.145 billion (2019–20)
, chancellor ...
, D.Phil (1954).
Atlas Computer Laboratory
The Atlas Computer Laboratory on the Harwell, Oxfordshire campus shared by the Harwell Laboratory was one of the major computer laboratories in the world, which operated between 1961 and 1975 to provide a service to British scientists at a time ...
(Science Research Council) and Pembroke College , Oxford. (1964-1969)
Tutorial Fellow in Mathematics, Pembroke College, Oxford, now Emeritus Fellow. (1969-1998)Professor of Mathematical Physics, University of Oxford
now Emeritus Professor.(1992-1998) Visiting Professor, Department of Applied Mathematics and Theoretical Physics, University of Cambridge. (2013-)
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