Shasanka Mohan Roy

== Legacy ==

== Legacy ==

[[File:EPR illustration.svg|thumb|235px|[[EPR paradox]] illustration]]

[[File:EPR illustration.svg|thumb|235px|[[EPR paradox]] illustration]]

Roy's research was principally based on pion dynamics and hadron interactions.{{Cite web |url=http://ssbprize.gov.in/content/Detail.aspx?AID=488 |title=Brief Profile of the Awardee |date=2017 |publisher=Shanti Swarup Bhatnagar Prize |access-date=12 November 2016}} His work on [[axiomatic quantum field theory]] assisted him to develop an exact [[integral equation]] which later came to be known as ''Roy's equations'', and many scientists opined that the equation helped in pion–pion data analysis.{{Cite web |url=http://theory.tifr.res.in/~shasanka/highlights06.pdf |title=Research Highlights |date=2017 |publisher=Tata Institute of Fundamental Research}} Roy furthered the studies of Andre Martin on high-energy bounds and the observations of [[John Stewart Bell]] regarding [[Einstein-Podolsky-Rosen paradox]]; his work on the former resulted in the development of ''Roy-Singh bounds'' (unitarity bounds on high-energy cross sections) and the studies on the latter evolved into ''Roy-Singh multiparticle Bell inequalities'' and ''Auberson-Mahoux-Roy-Singh Bell inequalities''. He developed the theme further by proposing ''Roy's multipartite separability inequalities''. Another area of his research was the [[Chandrasekhar limit]] and the critical mass of [[boson]] systems, and Roy collaborated with Andre Martin to propose a proof for the relativistic collapse of ''M_cr'' critical mass. ''Dhar-Grover-Roy super-Zeno algorithm'', for use in ''suppressing the transitions of a quantum mechanical system'',{{Cite journal |last=Deepak Dhar, Lov K. Grover, Shasanka M. Roy |title=Preserving Quantum States: A Super-Zeno Effect |journal=Physical Review Letters |date=2006 |volume=96 |issue=10 |article-number=100405 |doi=10.1103/PhysRevLett.96.100405|pmid=16605715 |bibcode=2006PhRvL..96j0405D |s2cid=36086444 }} ''Roy-Braunstein's quantum metrology'', a precision measurement protocol,{{Cite journal |last=S. M. Roy, Samuel L. Braunstein |title=Exponentially Enhanced Quantum Metrology |journal=Physical Review Letters |date=2008 |volume=100 |issue=22 |article-number=220501 |doi=10.1103/PhysRevLett.100.220501|pmid=18643409 |arxiv=quant-ph/0607152 |bibcode=2008PhRvL.100v0501R |s2cid=7979719 }} and his elucidation of [[Pomeranchuk's theorem]] and its violations are some of his other major contributions.{{cite web | url=http://www.csirhrdg.res.in/ssb.pdf | title=Handbook of Shanti Swarup Bhatnagar Prize Winners | publisher=Council of Scientific and Industrial Research | date=1999}} His studies have been documented by way of a number of articles{{Cite web |url=http://repository.ias.ac.in/view/fellows/Roy=3AShasanka_Mohan=3A=3A.html |title=Browse by Fellow |date=2017 |publisher=Indian Academy of Sciences}}{{Refn|group=note|Please see ''Selected bibliography'' section}} and [[ResearchGate]], an online repository of scientific articles, has listed 105 of them.{{Cite web |url=https://www.researchgate.net/profile/Shasanka_Roy/publications |title=On ResearchGate |date=2017 }} Besides, he has published a book, ''Advances in High Energy Physics'',{{cite book|author1=S. M. Roy|author2=Virendra Singh|title=Advances in High Energy Physics|url=https://books.google.com/books?id=lqxTvgAACAAJ|date=1973|publisher=Tata Institute of Fundamental Research}} along with [[Virendra Singh (physicist)|Virendra Singh]], and his work has drawn citations from other scientists.{{cite book|author=T.Y. Lam|title=Serre's Problem on Projective Modules|url=https://books.google.com/books?id=7K-h_v_JPf8C&pg=PA366|date=17 May 2010|publisher=Springer Science & Business Media|isbn=978-3-540-34575-6|pages=366–}}{{cite book|author=Asoke Nath Mitra|title=India in the World of Physics: Then and Now|url=https://books.google.com/books?id=hRLPM6s7hWAC&pg=PA78|year=2009|publisher=Pearson Education India|isbn=978-81-317-1579-6|pages=78–}}

Roy's research was principally based on pion dynamics and hadron interactions.{{Cite web |url=http://ssbprize.gov.in/content/Detail.aspx?AID=488 |title=Brief Profile of the Awardee |date=2017 |publisher=Shanti Swarup Bhatnagar Prize |access-date=12 November 2016}} His work on [[axiomatic quantum field theory]] assisted him to develop an exact [[integral equation]] which later came to be known as ''Roy's equations'', and many scientists opined that the equation helped in pion–pion data analysis.{{Cite web |url=http://theory.tifr.res.in/~shasanka/highlights06.pdf |title=Research Highlights |date=2017 |publisher=Tata Institute of Fundamental Research}} Roy furthered the studies of Andre Martin on high-energy bounds and the observations of [[John Stewart Bell]] regarding [[Einstein-Podolsky-Rosen paradox]]; his work on the former resulted in the development of ''Roy-Singh bounds'' (unitarity bounds on high-energy cross sections) and the studies on the latter evolved into ''Roy-Singh multiparticle Bell inequalities'' and ''Auberson-Mahoux-Roy-Singh Bell inequalities''. He developed the theme further by proposing ''Roy's multipartite separability inequalities''. Another area of his research was the [[Chandrasekhar limit]] and the critical mass of [[boson]] systems, and Roy collaborated with Andre Martin to propose a proof for the relativistic collapse of ''M_cr'' critical mass. ''Dhar-Grover-Roy super-Zeno algorithm'', for use in ''suppressing the transitions of a quantum mechanical system'',{{Cite journal |last=Deepak Dhar, Lov K. Grover, Shasanka M. Roy |title=Preserving Quantum States: A Super-Zeno Effect |journal=Physical Review Letters |date=2006 |volume=96 |issue=10 |article-number=100405 |doi=10.1103/PhysRevLett.96.100405|pmid=16605715 |bibcode=2006PhRvL..96j0405D |s2cid=36086444 }} ''Roy-Braunstein's quantum metrology'', a precision measurement protocol,{{Cite journal |last=S. M. Roy, Samuel L. Braunstein |title=Exponentially Enhanced Quantum Metrology |journal=Physical Review Letters |date=2008 |volume=100 |issue=22 |article-number=220501 |doi=10.1103/PhysRevLett.100.220501|pmid=18643409 |arxiv=quant-ph/0607152 |bibcode=2008PhRvL.100v0501R |s2cid=7979719 }} and his elucidation of [[Pomeranchuk's theorem]] and its violations are some of his other major contributions.{{cite web | url=http://www.csirhrdg.res.in/ssb.pdf | title=Handbook of Shanti Swarup Bhatnagar Prize Winners | publisher=Council of Scientific and Industrial Research | date=1999}} His studies have been documented by way of a number of articles{{Cite web |url=http://repository.ias.ac.in/view/fellows/Roy=3AShasanka_Mohan=3A=3A.html |title=Browse by Fellow |date=2017 |publisher=Indian Academy of Sciences}}{{Refn|group=note|Please see ''Selected bibliography'' section}} and [[ResearchGate]], an online repository of scientific articles, has listed 105 of them.{{Cite web |url=https://www.researchgate.net/profile/Shasanka_Roy/publications |title=On ResearchGate |date=2017 }} Besides, he has published a book, ''Advances in High Energy Physics'',{{cite book|author1=S. M. Roy|author2=Virendra Singh|title=Advances in High Energy Physics|url=https://books.google.com/books?id=lqxTvgAACAAJ|date=1973|publisher=Tata Institute of Fundamental Research}} along with [[Virendra Singh (physicist)|Virendra Singh]], and his work has drawn citations from other scientists.{{cite book|author=T.Y. Lam|author-link=Tsit Yuen Lam|title=Serre's Problem on Projective Modules|url=https://books.google.com/books?id=7K-h_v_JPf8C&pg=PA366|date=17 May 2010|publisher=Springer Science & Business Media|isbn=978-3-540-34575-6|pages=366–}}{{cite book|author=Asoke Nath Mitra|title=India in the World of Physics: Then and Now|url=https://books.google.com/books?id=hRLPM6s7hWAC&pg=PA78|year=2009|publisher=Pearson Education India|isbn=978-81-317-1579-6|pages=78–}}

Roy initiated the ''Theoretical Physics Seminar Circuit'' (TPSC) of the [[Department of Science and Technology (India)|Department of Science and Technology]] (DST) at Tata Institute of Fundamental Research. He has conducted lecture courses for DST at CSIR-Structural Engineering Research Centre institutions and served as the expert member at the senate of the [[Indian Institute of Technology, Bombay]] in 1997. Roy was the principal Indian investigator of the Indo-French Centre for the Promotion of Advanced Research (IFCPAR/CEFIPRA)-funded project on ''Rigorous Results on Schroedinger Equations and Foundations of Quantum Theory and Applications to Particle physics and Astrophysics'' during 1999–2002.

Roy initiated the ''Theoretical Physics Seminar Circuit'' (TPSC) of the [[Department of Science and Technology (India)|Department of Science and Technology]] (DST) at Tata Institute of Fundamental Research. He has conducted lecture courses for DST at CSIR-Structural Engineering Research Centre institutions and served as the expert member at the senate of the [[Indian Institute of Technology, Bombay]] in 1997. Roy was the principal Indian investigator of the Indo-French Centre for the Promotion of Advanced Research (IFCPAR/CEFIPRA)-funded project on ''Rigorous Results on Schroedinger Equations and Foundations of Quantum Theory and Applications to Particle physics and Astrophysics'' during 1999–2002.