Sadhan Kumar Adhikari

Sadhan Kumar Adhikari was born to Nalini Ranjan and Mira Adhikari on 2 January 1948 in Kharagpore, India. In 1962 he graduated from Hindu School, Kolkata and then joined the Bachelor of Science program at the Presidency University, Kolkata which he finished with honours by 1965. The same year he started the Master of Science course at the University of Calcutta which he completed by 1968. For a year he was a post-M.Sc fellow at the Saha Institute of Nuclear Physics, India and in 1973 obtained PhD in physics from the University of Pennsylvania, USA. From 1973 to 1976 worked at the University of New South Wales, Australia as a post-doc scholar and since 1976 till 1991 was an associate professor at the Federal University of Pernambuco,{{cite web|url=https://professores.ift.unesp.br/sk.adhikari/personal/index.html|title=Sadhan Kumar Adhikari|accessdate=11 April 2017}} Brazil.

He contributed to the area of few-body scattering in nuclear and atomic physics,{{cite journal|author=S. K. Adhikari|author2=I. H. Sloan|title=Separable expansion of the t matrix with analytic form factors|journal=Physical Review C|publisher=American Physical Society|volume=11|issue=4|year=1975|page=1133|bibcode=1975PhRvC..11.1133A|doi=10.1103/PhysRevC.11.1133}}

{{cite journal|url=https://journals.aps.org/prc/abstract/37.3666/PhysRevA.37.3666|author=S. K. Adhikari|title=Efimov and Thomas effects and the model dependence of three-particle observables in two and three dimensions|author2=A. Delfino|author3=T. Frederico|author4=I. D. Goldman|author5=L. Tomio|journal=Physical Review A|publisher=American Physical Society|volume=37|issue=4|pages=3666–3673|year=1988|bibcode=1988PhRvA..37.3666A|doi=10.1103/PhysRevA.37.3666|pmid=9899475|hdl=11449/36417|hdl-access=free}}

renormalization in nonrelativistic quantum mechanics,{{cite journal|author=S. K. Adhikari|author2=T. Frederico|author3=I. D. Goldman|title=Perturbative Renormalization in Quantum Few-Body Problems |journal=Physical Review Letters|publisher=American Physical Society|volume=74|issue=4|pages = 487–491|year=1995|bibcode=1975PhRvLe..74.487A|doi=10.1103/PhysRevLett.74.487|pmid = 10058770|url = https://cds.cern.ch/record/273586|hdl=11449/31461|hdl-access=free}} and the physics of cold atoms and superfluids. He formulated the quantum scattering theory in two dimensions using Lippmann–Schwinger equations and the asymptotic wave function for scattering.{{cite journal|author=Sadhan K. Adhikari|title=Quantum scattering in two dimensions|journal=American Journal of Physics|publisher=AAPT|volume=54|issue=4|page=362|year=1986|doi=10.1119/1.14623|bibcode=1986AmJPh..54..362A}} From 2002{{cite journal|author=Sadhan K Adhikari and Paulsamy Muruganandam|title=Bose-Einstein condensation dynamics from the numerical solution of the Gross-Pitaevskii equation|journal=Journal of Physics B|publisher=IOP Publishing|volume=35|issue=12|page=2831|doi=10.1088/0953-4075/35/12/317|year=2002|citeseerx=10.1.1.311.9748|bibcode=2002JPhB...35.2831A|arxiv=cond-mat/0205172}} to 2009{{cite journal|author=Sadhan K Adhikari and Paulsamy Muruganandam|title=Fortran programs for the time-dependent Gross–Pitaevskii equation in a fully anisotropic trap|journal=Computer Physics Communications|volume=180|issue=10|pages=1888–1912|date=October 2009|doi=10.1016/j.cpc.2009.04.015|arxiv=0904.3131|bibcode=2009CoPhC.180.1888M}} he used Gross–Pitaevskii equation to study the formation of bright solitons in a Bose–Einstein condensate using FORTRAN 77 programs.{{cite journal|author=Sadhan K. Adhikari|title=Bright solitons in coupled defocusing NLS equation supported by coupling: Application to Bose–Einstein condensation|journal=Physics Letters A|volume=346|issue=1–3|pages=179–185|date=10 October 2005|doi=10.1016/j.physleta.2005.07.044|arxiv=cond-mat/0506444|bibcode=2005PhLA..346..179A}}{{cite journal|url=https://journals.aps.org/pra/abstract/10.1103/PhysRevA.10.1103|author=S. K. Adhikari|title=Stabilization of bright solitons and vortex solitons in a trapless three-dimensional Bose-Einstein condensate by temporal modulation of the scattering length|journal=Physical Review A|publisher=American Physical Society|volume=69|issue=6|year=2004|page=063613|bibcode=2004PhRvA..69f3613A|doi=10.1103/PhysRevA.69.063613|arxiv=cond-mat/0406530|hdl=11449/23690}}

He, in collaboration with P. Muruganandam and Antun Balaž, and colleagues from the Institute of Physics, Scientific Computing Laboratory, Belgrade wrote popular Fortran and C programs to solve the Gross–Pitaevskii equation and study properties of Bose–Einstein condensates using the Crank–Nicolson method.{{cite journal|author=Dušan Vudragović|author2=Ivana Vidanović|author3=Antun Balaž|author4=Paulsamy Muruganandam|author5=Sadhan K. Adhikari

|title=C programs for solving the time-dependent Gross–Pitaevskii equation in a fully anisotropic trap|journal=Computer Physics Communications|volume=189|issue=9|pages=2021–2025|date=September 2012|doi=10.1016/j.cpc.2012.03.022|arxiv=1206.1361|bibcode=2012CoPhC.183.2021V}} He is the author of two books on scattering theory published by Academic Press, San Francisco, Hard cover (1988),{{cite book|url=https://www.amazon.com.br/Sadhan-K.-Adhikari/e/B001HP20FU%3Fref=dbs_a_mng_rwt_scns_share|author=S. K. Adhikari and K. L. Kowalski |title=Dynamical Collision Theory and its Applications, Academic, San Francisco (1988) }} Paperback (2012) and eTextbook (2012) and by John Wiley & Sons, New York (1998).{{cite book|url=https://www.amazon.com.br/Sadhan-K.-Adhikari/e/B001HP20FU%3Fref=dbs_a_mng_rwt_scns_share|author=S. K. Adhikari |title=Variational Principles and the Numerical Solution of Scattering Problems, John Wiley, New York (1998) }} According to Webofscience he published more than 300 research articles with more than 7000 citations (H factor=44).{{cite web|url=https://publons.com/researcher/2809921/sadhan-k-adhikari/|title=Publons-Webofscience|accessdate=April 12, 2021}}

Dr. Adhikari is a Graduate fellow of the University of Pennsylvania (1970), and a Fellow of the John Simon Guggenheim Memorial Foundation (1996).{{cite web|url=https://www.gf.org/fellows/all-fellows/sadhan-kumar-adhikari/|title=Guggengeim|accessdate=September 21, 2020}}

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Category:1948 births

Category:Living people

Category:Academic staff of the Federal University of Pernambuco

Category:Academic staff of the University of New South Wales

Category:United States National Science Foundation officials

Category:University of Pennsylvania fellows

Category:Academic staff of the São Paulo State University

Category:Brazilian people of Indian descent