Ian Grant (physicist)

Ian Philip Grant, DPhil; FRS; CMath; FIMA, FRAS, FInstP [1] (born 15 December 1930) is a British mathematical physicist. He is Emeritus Professor of Mathematical Physics at the University of Oxford and was elected a fellow of the Royal Society in 1992.[2] He is a pioneer in the field of computational physics and is internationally recognised as the principal author of GRASP, the General Relativistic Atomic Structure Program.[3]

Education

St Albans School, Hertfordshire (1939-1948). Open Scholar in Natural Science , Wadham College Oxford, MA (Mathematics) (1951). Clarendon Laboratory, University of Oxford, D.Phil (1954).[1]

Career

Source:[1]

UKAEA. Mathematical Physics Division, Aldermaston. Senior Scientific officer (1957-1962); Principal Scientific Officer (1962-1964).

Joint Research Fellowship, Atlas Computer Laboratory (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-)

Academic Research

Source:[2][4][5]

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.[2] He has also been instrumental in the creation of computer codes[6] that are used worldwide (in particular GRASP)[7][3][8][9] 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.[4] 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.[10] 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.[11][12][13] He also led important earlier work on radiative transfer in stellar and planetary atmospheres.[14][15][16]

Professor Grant’s book Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation[17][18] reviews the field of relativistic atomic and molecular structure to the mid-2000s.

References

  1. ^ a b c "Grant, Prof. Ian Philip, (born 15 Dec. 1930), Professor of Mathematical Physics, University of Oxford, 1992–98, now Emeritus Professor; Tutorial Fellow in Mathematics, Pembroke College, Oxford, 1969–98, now Emeritus Fellow; Visiting Professor, Department of Applied Mathematics and Theoretical Physics, University of Cambridge, since 2013". WHO'S WHO & WHO WAS WHO. 2007. doi:10.1093/ww/9780199540884.013.U17859. ISBN 978-0-19-954088-4. Retrieved 10 January 2021.
  2. ^ a b c "Ian Grant | Royal Society". royalsociety.org. Retrieved 10 January 2021.
  3. ^ a b Dyall, K.G.; Grant, I.P.; Johnson, C.T.; Parpia, F.A.; Plummer, E.P. (October 1989). "GRASP: A general-purpose relativistic atomic structure program". Computer Physics Communications. 55 (3): 425–456. Bibcode:1989CoPhC..55..425D. doi:10.1016/0010-4655(89)90136-7. ISSN 0010-4655.
  4. ^ a b Karwowski, Jacek (July 2001). "Ian P. Grant, FRS — a biographical note". Computer Physics Communications. 138 (1): 10–17. Bibcode:2001CoPhC.138...10K. doi:10.1016/s0010-4655(01)00246-6. ISSN 0010-4655.
  5. ^ Grant, Ian (2013). "Professor Ian P Grant - CV (Biographical Note)" (PDF).
  6. ^ Scott, T.C.; Monagan, M.B.; Grant, I.P.; Saunders, V.R. (1997). "Numerical computation of molecular integrals via optimized (vectorized) FORTRAN code". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 389 (1): 117–120. Bibcode:1997NIMPA.389..117S. doi:10.1016/S0168-9002(97)00059-4. ISSN 0168-9002.
  7. ^ Grant, I.P.; McKenzie, B.J.; Norrington, P.H.; Mayers, D.F.; Pyper, N.C. (December 1980). "An atomic multiconfigurational Dirac-Fock package". Computer Physics Communications. 21 (2): 207–231. Bibcode:1980CoPhC..21..207G. doi:10.1016/0010-4655(80)90041-7. ISSN 0010-4655.
  8. ^ Jönsson, P.; He, X.; Froese Fischer, C.; Grant, I.P. (October 2007). "The grasp2K relativistic atomic structure package". Computer Physics Communications. 177 (7): 597–622. Bibcode:2007CoPhC.177..597J. doi:10.1016/j.cpc.2007.06.002. ISSN 0010-4655.
  9. ^ Jönsson, P.; Gaigalas, G.; Bieroń, J.; Fischer, C. Froese; Grant, I.P. (September 2013). "New version: Grasp2K relativistic atomic structure package". Computer Physics Communications. 184 (9): 2197–2203. Bibcode:2013CoPhC.184.2197J. doi:10.1016/j.cpc.2013.02.016. hdl:2043/16226. ISSN 0010-4655.
  10. ^ Quiney, H. M.; Skaane, H.; Grant, I. P. (1 January 1998). "Ab initio relativistic quantum chemistry: Four-components good, two-components bad!". In Löwdin, Per-Olov (ed.). Ab initio relativistic quantum chemistry: four-components good, two-components bad!**With apologies to George Orwell [1]. Advances in Quantum Chemistry. Vol. 32. Academic Press. pp. 1–49. doi:10.1016/s0065-3276(08)60405-0. ISBN 9780120348336. Retrieved 11 January 2021.
  11. ^ Norrington, P H; Grant, I P (14 April 1981). "Electron scattering from Ne II using the relativistic R-matrix method". Journal of Physics B: Atomic and Molecular Physics. 14 (7): L261–L267. Bibcode:1981JPhB...14L.261N. doi:10.1088/0022-3700/14/7/006. ISSN 0022-3700.
  12. ^ Norrington, P H; Grant, I P (28 September 1987). "Low-energy electron scattering by Fe XXIII and Fe VII using the Dirac R-matrix method". Journal of Physics B: Atomic and Molecular Physics. 20 (18): 4869–4881. Bibcode:1987JPhB...20.4869N. doi:10.1088/0022-3700/20/18/023. ISSN 0022-3700.
  13. ^ Wijesundera, Wasantha; Grant, Ian; Norrington, Patrick (1998), Boyle, J. J.; Pindzola, M. S. (eds.), "Electron scattering from atomic targets: application of Dirac R-matrix theory", Many-Body Atomic Physics, Cambridge: Cambridge University Press, pp. 325–348, doi:10.1017/cbo9780511470790.016, ISBN 978-0-521-47006-3, retrieved 11 January 2021
  14. ^ Grant, Ian Philip; Hunt, G. E.; Flowers, Brian Hilton (21 October 1969). "Discrete space theory of radiative transfer I. Fundamentals". Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 313 (1513): 183–197. Bibcode:1969RSPSA.313..183G. doi:10.1098/rspa.1969.0187. S2CID 123320528.
  15. ^ Grant, Ian Philip; Hunt, G. E.; Flowers, Brian Hilton (21 October 1969). "Discrete space theory of radiative transfer II. Stability and non-negativity". Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 313 (1513): 199–216. Bibcode:1969RSPSA.313..199G. doi:10.1098/rspa.1969.0188. S2CID 121094462.
  16. ^ Grant, I. P.; Peraiah, A. (1 November 1972). "Spectral Line Formation in Extended Stellar Atmospheres". Monthly Notices of the Royal Astronomical Society. 160 (3): 239–247. Bibcode:1972MNRAS.160..239G. doi:10.1093/mnras/160.3.239. ISSN 0035-8711.
  17. ^ Grant, I. P. (2007). Relativistic quantum theory of atoms and molecules : theory and computation. New York: Springer. ISBN 978-0-387-35069-1. OCLC 186506935.
  18. ^ Johnson, Walter (January 2008). "Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation , I. P. Grant , Springer, New York, 2007. $199.00 (797 pp.). ISBN 978-0387-34671-7". Physics Today. 61 (1): 62. doi:10.1063/1.2835158. ISSN 0031-9228.