| Ramaswamy Jagannathan is an Indian physicist at the  in Chennai. He made seminal contributions to Charged particle beams (Electron optics and
 Accelerator physics)
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 Clifford Algebra
 ,
 Classical groups,
 Quantum groups
 ,
 Quantum algebra
 ,
 Special functions and
 Hypergeometric series
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 Career
 Ramaswamy Jagannathan did MSc in Physics from the  in 1971.
 He did PhD under the supervision of Alladi Ramakrishnan, the Founder-Director of
 Matscience.  For his Doctoral Work, he received the Governor-Chancellor's Centenary Prize Gold Medal
 for 1976 (Award for the Best Thesis in Science).
 
 Jagannathan and collaborators initiated the
 "Quantum theory of charged-particle beam optics",
 by working out the focusing action of a magnetic quadrupole using the
 Dirac Equation..  He pioneered the use of the Foldy-Wouthuysen transformation in optics.  He was a invited to all the three ICFA (International Committee for Future Accelerators) Advanced Beam Dynamics Workshops, covering the emerging field of "Quantum Aspects of Beam Physics (QABP)".
 
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