Suraj N. Gupta

S. N. Gupta was born on 1 December 1924 in Punjab, British India.{{cite book|last1=Marquis Who's Who, Marquis Who's Who Staff|title=Who's Who in the Midwest, 1996-1997: Classic Edition|date=1 October 1996|publisher=Marquis Who's Who|isbn=0837907268}} He received his M.Sc. from St. Stephen's College, Delhi, and a Ph.D. from the University of Cambridge, and worked at the Dublin Institute for Advanced Studies from 1948 to 1949.Biographische Daten aus [http://www.stp.dias.ie/people/history.shtml Mitgliederliste des Dubliner Institute of Advanced Study] {{Webarchive|url=https://web.archive.org/web/20110716061330/http://www.stp.dias.ie/people/history.shtml |date=16 July 2011 }} From 1951 to 1953 he served as ICI Fellow at the University of Manchester.{{cite journal|last=Gupta|first=Suraj N.|title=Quantization of Einstein's Gravitational Field: General Treatment|journal=Proceedings of the Physical Society | series = Series A|year=1952|volume=65|issue=8|pages=608–619|doi=10.1088/0370-1298/65/8/304|bibcode = 1952PPSA...65..608G }} In 1953 S. N. Gupta joined as a visiting professor at Purdue University and remained there until 1956. From 1956, he served as a professor at Wayne State University in Detroit, where he was a Distinguished Professor of Physics (Emeritus).

S. N. Gupta introduced in 1950, simultaneously and independently of Konrad Bleuler, the Gupta–Bleuler quantization of the quantum electrodynamics (QED), that takes the covariant Lorenz gauge condition on an indefinite metric in Hilbert space of states realized.S. Gupta Theory of Longitudinal Photons in Quantum Electrodynamics, Proceedings Physical Society A, Bd. 63, 1950, S. 681-691 From it came some of the first attempts, to derive the equations of general relativity from quantum field theory for a massless spin-2 particle (graviton).Gupta, Suraj N., Gravitation and Electromagnetism, Physical Review Bd. 96, 1954, S. 1683 Similar work has also led Robert Kraichnan in the 1940s (not published until 1955) and later in the 1960s, by Richard Feynman and Steven Weinberg. Later he worked in various areas of quantum field theory and elementary particle physics, including quantum chromodynamics and quarkonium.

• Barua, D. & Gupta, S. N. (1977). [https://doi.org/10.1103/PhysRevD.15.509?_gl=1*1yh1r3h*_gcl_au*OTMyMDYyMjM2LjE3MzU4NTY2MTI.*_ga*MTQxNTgyNzYxMS4xNzM1ODU2NjEx*_ga_ZS5V2B2DR1*MTczNTkzMTEzOC40LjAuMTczNTkzMTEzOC42MC4wLjEwNzY0NjA1Mg.. Magnetic and quadrupole moments of the W boson]. Physical Review D, 15(2), 509.
• Gupta, S. N., & Radford, S. F. (1985). [https://doi.org/10.1103/PhysRevD.32.781?_gl=1*1vs049y*_gcl_au*OTMyMDYyMjM2LjE3MzU4NTY2MTI.*_ga*MTQxNTgyNzYxMS4xNzM1ODU2NjEx*_ga_ZS5V2B2DR1*MTczNTkzMTEzOC40LjEuMTczNTkzMTE5NS4zLjAuMTA3NjQ2MDUy Quark confinement in quantum chromodynamics]. Physical Review D, 32(3), 781.
• Gupta, S. N., Radford, S. F., & Repko, W. W. (1985). (A comment on) [https://doi.org/10.1103/PhysRevLett.55.3006?_gl=1*pzf23b*_gcl_au*OTMyMDYyMjM2LjE3MzU4NTY2MTI.*_ga*MTQxNTgyNzYxMS4xNzM1ODU2NjEx*_ga_ZS5V2B2DR1*MTczNTkzMTEzOC40LjEuMTczNTkzMTI0OS4xOS4wLjEwNzY0NjA1Mg.. Spin-dependent forces in heavy-quark systems]. Physical Review Letters, 55(27), 3006.
• Gupta, S. N., Johnson, J. M., & Repko, W. W. (1996). [https://doi.org/10.1103/PhysRevD.54.2075?_gl=1*bmqxpk*_gcl_au*OTMyMDYyMjM2LjE3MzU4NTY2MTI.*_ga*MTQxNTgyNzYxMS4xNzM1ODU2NjEx*_ga_ZS5V2B2DR1*MTczNTkzMTEzOC40LjEuMTczNTkzMTM5MS4yNy4wLjEwNzY0NjA1Mg.. Relativistic two-photon and two-gluon decay rates of heavy quarkonia]. Physical Review D, 54(3), 2075.
• Gupta, S. N., Johnson, J. M., Ladinsky, G. A., & Repko, W. W. (1996). [https://doi.org/10.1103/PhysRevD.53.4897?_gl=1*nrw75g*_gcl_au*OTMyMDYyMjM2LjE3MzU4NTY2MTI.*_ga*MTQxNTgyNzYxMS4xNzM1ODU2NjEx*_ga_ZS5V2B2DR1*MTczNTkzMTEzOC40LjEuMTczNTkzMTMyOC45LjAuMTA3NjQ2MDUy Gauge-boson scattering signals at the CERN LHC]. Physical Review D, 53(9), 4897.

Gupta later resided in Franklin, Michigan.[https://www.insaindia.res.in/pdf/Yearbook_2021.pdf The Year Book 2021, pg. 50] He died in West Bloomfield, Michigan, United States of America on 4 July 2021, at the age of 96.{{cite web |title=Suraj Narayan Gupta |url=https://www.forevermissed.com/suraj-narayan-gupta/about |website=Forever Missed |access-date=9 October 2023}}

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Category:1924 births

Category:2021 deaths

Category:20th-century Indian physicists

Category:21st-century American physicists

Category:Indian quantum physicists

Category:Alumni of the University of Cambridge

Category:Scientists from Punjab, India

Category:Indian particle physicists

Category:Indian emigrants to the United States

Category:Indian expatriates in the United Kingdom

Category:Purdue University faculty

Category:Wayne State University faculty

Category:Fellows of the American Physical Society

Category:Academics of the Dublin Institute for Advanced Studies

Category:People from Punjab Province (British India)