>GreenC bot at 15:00, 14 April 2021

2021-04-14T15:00:27Z

New page

{{short description|Indian physicist}}
{{For|the Indian politician|Ashoke Kumar Sen}}
{{EngvarB|date=February 2020}}
{{Use dmy dates|date=February 2020}}
{{Infobox scientist
| name = Ashoke Sen
| image = Dr. Ashoke Sen in Physics department of Scottish Church College.jpg
| caption = Ashoke Sen in the Physics department of [[Scottish Church College]] in 2019
| birth_date = {{Birth date and age|1956|7|15|df=yes}}
| birth_place = [[Kolkata]], [[West Bengal]], [[India]]
| death_date =
| death_place =
| residence = [[Allahabad]], [[Uttar Pradesh]], India
| nationality = [[Indian nationality|Indian]]
| fields = [[Physics]]
| workplaces = {{ublist|[[Fermilab]]|[[Stanford Linear Accelerator Center]]|[[Tata Institute of Fundamental Research]]|[[Harish-Chandra Research Institute]]|[[Indian Institute of Science Education and Research, Bhopal]]}}
| alma_mater = {{ublist|[[Presidency College, Kolkata]] (BSc)|[[Indian Institute of Technology, Kanpur|IIT Kanpur]] (MSc)|[[Stony Brook University]] (PhD)}}
| doctoral_advisor = {{ublist|[[George Sterman]]}}
| known_for = Contributions to [[string field theory]]<br/>[[S-duality]]<br/>[[tachyon condensation|Sen Conjecture]]
| awards = {{ublist|[[G.D. Birla Award for Scientific Research]] (1996)|[[TWAS Prize]] (1997)|[[Padma Shri]] (2001)|[[Infosys Prize]] - Mathematical Sciences (2009)|[[Fundamental Physics Prize]] (2012)|[[Padma Bhushan]] (2013)|[[Dirac Medal]] (2014)}}
| spouse = [[Sumathi Rao]]
| website = {{URL|https://www.hri.res.in/~sen/}}
}}
'''Ashoke Sen''', [[Fellow of the Royal Society|FRS]] ({{IPAc-en|ə|ˈ|ʃ|oʊ|k|_|s|ɛ|n}}; born 1956) is an Indian [[theoretical physicist]] and distinguished professor at the [[Harish-Chandra Research Institute]], [[Allahabad]].<ref name="Pulakkat">{{cite news|author=Pulakkat, Hari|date=19 December 2013|title=How many of us know about Breakthrough Prize winner, Ashoke Sen?|url=https://economictimes.indiatimes.com/opinion/et-commentary/how-many-of-us-know-about-breakthrough-prize-winner-ashoke-sen/articleshow/27612815.cms|newspaper=[[The Economic Times]]|access-date=4 September 2019}}</ref> He is also an honorary fellow in [[National Institute of Science Education and Research]] (NISER), Bhubaneswar, India<ref name="auto">{{cite web|url=https://www.niser.ac.in/sps/page/faculty|title=School of Physical Sciences|publisher=National Institute of Science Education and Research|access-date=4 September 2019}}</ref> and also a Morningstar Visiting professor at [[MIT]] and a distinguished professor at the [[Korea Institute for Advanced Study]]. His main area of work is [[string theory]]. He was among the first recipients of the [[Fundamental Physics Prize]] "for opening the path to the realisation that all string theories are different limits of the same underlying theory".<ref name=":0">{{Cite web|title=Fundamental Physics Breakthrough Prize|url=https://breakthroughprize.org/Laureates/1/L8|access-date=17 June 2020}}</ref>

==Early life==
He was born on 15 July 1956<ref name=IASFellowProfile>{{cite web|title=Fellow Profile – Sen, Prof. Ashoke|url=http://www.ias.ac.in/describe/fellow/Sen,_Prof._Ashoke|website=Indian Academy of Sciences|access-date=23 January 2016|location=Bangalore|publisher=[[Indian Academy of Sciences]]}}</ref> in Kolkata, and is the elder son of Anil Kumar Sen, a former professor of physics at the [[Scottish Church College]], and Gouri Sen, a homemaker.<ref name=pillow_power>{{cite news|url=https://www.telegraphindia.com/india/physicist-with-pillow-power/cid/389848|title=Physicist with pillow power|author=Miudur, G.S.|date=2 August 2012|access-date=4 September 2019}}</ref>

After completing his schooling from [[Sailendra Sirkar Vidyalaya|Sailendra Sircar Vidyalaya]] in [[Kolkata]], he earned his Bachelor of Science degree in 1975 from the [[Presidency College, Kolkata|Presidency College]] under the [[University of Calcutta]], and his master's a year later from the [[Indian Institute of Technology Kanpur]]. During his undergraduate studies at Presidency, he was greatly inspired by the work and teaching of [[Amal Kumar Raychaudhuri]]. He did his doctoral work in physics at [[Stony Brook University]].

==Career==
Ashoke Sen made a number of major original contributions to the subject of [[string theory]], including his landmark paper on strong-weak coupling duality or [[S-duality]],<ref>{{cite journal|title=Dyon – monopole bound states, selfdual harmonic forms on the multi – monopole moduli space, and SL(2,Z) invariance in string theory|journal=Phys. Lett.|volume=B329|year=1994|pages=217–221|doi=10.1016/0370-2693(94)90763-3|arxiv=hep-th/9402032|bibcode= 1994PhLB..329..217S|last1=Sen|first1=Ashoke|issue=2–3|s2cid=17534677}}</ref> which was influential in changing the course of research in the field. He pioneered the study of unstable [[D-branes]] and made the famous [[tachyon condensation|Sen conjecture]] about [[String (physics)|open string]] [[tachyon condensation]] on such branes.<ref>{{cite journal|title=Tachyon condensation on the brane antibrane system|journal=JHEP|volume=1998|issue=8|year=1998|pages=012|doi=10.1088/1126-6708/1998/08/012|arxiv =hep-th/9805170|bibcode=1998JHEP...08..012S|last1=Sen|first1=Ashoke|s2cid=14588486}}</ref> His description of rolling tachyons<ref>{{cite journal|title=Rolling Tachyon|journal=JHEP|volume=2002|issue=4|year=2002|pages=048|doi=10.1088/1126-6708/2002/04/048|arxiv=hep-th/0203211|bibcode=2002JHEP...04..048S|last1=Sen|first1=Ashoke|s2cid=12023565}}</ref> has been influential in [[string cosmology]]. He has also co-authored many important papers on [[string field theory]].

In 1998 he won the fellowship of the [[Royal Society]] on being nominated by the theoretical physicist [[Stephen Hawking]].<ref name="Pulakkat" /> His contributions include the entropy function formalism for extremal black holes and its applications to attractors. His recent important works include the attractor mechanism and the precision counting of microstates of black holes, and new developments in string perturbation theory. He joined the [[National Institute of Science Education and Research]] (NISER), Bhubaneswar, India as an honorary professor in the School of Physical Sciences.<ref name="auto"/> In the year 2020 he has joined [[Indian Institute of Science Education and Research, Bhopal]] (IISER Bhopal), Bhopal, Madhya Pradesh, India as a Visiting / Adjunct Professor in the department of Physics.<ref>{{cite web|url=https://phy.iiserb.ac.in/faculty.php#|title=Department of Physics|publisher=Indian Institute of Science, Education & Research- Bhopal (IISER-Bhopal)}}</ref>

==Honors and awards==
*[[ICTP Prize]] in 1989<ref>{{cite web|url=https://www.ictp.it/about-ictp/prizes-awards/the-ictp-prize/the-prize-winners/ictp-prize-winner-1989.aspx|title=ICTP Prize Winner 1989|access-date=4 September 2019}}</ref>
*Fellow of the [[Indian Academy of Sciences]] in 1991<ref name=IASFellowProfile/>
*[[Shanti Swarup Bhatnagar Prize for Science and Technology|S.S. Bhatnagar award]] in 1994
*[[TWAS Prize]] 1997<ref>{{cite web|url=https://twas.org/recipients-twas-awards-and-prizes|title=Prizes and Awards|publisher=The World Academy of Sciences|access-date=4 September 2019}}</ref>
*[[Fellow of the Royal Society]] 1998<ref name="Pulakkat"/>
*Fellow of the [[Indian National Science Academy]] in 1996<ref>The Year Book 2014 // Indian National Science Academy, New Delhi.</ref>
*[[Padma Shri]] in 2001<ref>{{cite web|url=http://mha.nic.in/sites/upload_files/mha/files/LST-PDAWD-2013.pdf|title=Padma Awards|publisher=[[Ministry of Home Affairs, Government of India]]|access-date=21 July 2015|url-status=dead|archive-url=https://web.archive.org/web/20151015193758/http://mha.nic.in/sites/upload_files/mha/files/LST-PDAWD-2013.pdf|archive-date=15 October 2015}}</ref>
*[[Infosys Prize]] in the [[Mathematics|Mathematical Sciences]], 2009<ref>{{Cite web|url=https://www.infosys-science-foundation.com/prize/laureates/2009/ashoke-sen.asp|title=Infosys Prize - Laureates 2009 - Prof. K VijayRaghavan|website=www.infosys-science-foundation.com}}</ref>
*[[Doctor of Science]] ([[Honoris Causa]]), 2009, awarded by [[Indian Institute of Technology Kharagpur|IIT Kharagpur]]<ref>http://www.iitkgp.ac.in/institute/index.php?page=honors</ref>
*Doctor of Science (Honoris Causa), 2011, awarded by Bengal Engineering and Science University, Shibpur (Presently [[Indian Institute of Engineering Science and Technology, Shibpur]] )<ref>[http://www.iiests.ac.in/universitygallerymenuitem/category/35-ashokesenintheceremonyofhandingoverdsc-gallery]{{dead link|date=October 2016|bot=InternetArchiveBot|fix-attempted=yes}}</ref>
*[[Fundamental Physics Prize]], 2012, for his work on string theory<ref>{{cite web|url=https://breakthroughprize.org/News/15|title=New annual US$3 million Fundamental Physics Prize recognizes transformative advances in the field|publisher=Breakthrough Prize|date=31 July 2012|access-date=4 September 2019}}</ref><ref>{{cite news|url=http://economictimes.indiatimes.com/news/politics/nation/indian-scientist-ashoke-sen-bags-top-physics-honour/articleshow/15322177.cms|work=[[The Times of India]]|title=Indian scientist Ashoke Sen bags top physics honour|date=2 August 2012|access-date=4 September 2019}}</ref><ref name=":0" />
*[[Padma Bhushan]] in 2013<ref>{{cite news|url=http://articles.timesofindia.indiatimes.com/2013-01-26/india/36563644_1_s-haider-raza-padma-awards-padma-vibhushan|archive-url=https://web.archive.org/web/20130128211127/http://articles.timesofindia.indiatimes.com/2013-01-26/india/36563644_1_s-haider-raza-padma-awards-padma-vibhushan|url-status=dead|archive-date=28 January 2013|title=Rajesh Khanna, Sridevi, Mary Kom, Rahul Dravid on Padma list|agency=TNN|date=26 January 2013|work=[[The Times of India]]}}</ref>
*M.P. Birla Memorial Award in 2013
*Doctor of Science (Honoris Causa), 2013, awarded by [[Indian Institute of Technology Bombay]]<ref>{{cite web|url=https://www.embibe.com/exams/iit-bombays-fifty-first-convocation/undefined|title=IIT Bombay's fifty first convocation|publisher=Embide|date=14 August 2013|access-date=4 September 2019}}</ref>
*[[Doctor of Letters]] (honorary), 2013, awarded by [[Jadavpur University]]
*[[Dirac Medal]] in 2014<ref>{{Cite web|url=https://www.ictp.it/about-ictp/prizes-awards/the-dirac-medal/the-medallists/dirac-medallists-2014.aspx|title=ICTP - Dirac Medallists 2014|website=www.ictp.it}}</ref>

==References==
{{Reflist}}

==External links==
{{Scholia}}
*{{Official website|http://www.hri.res.in/~sen/|name=Home page}}
*[http://www.hri.res.in/~sen/cv.pdf Ashoke Sen CV]
*[http://scientific.thomson.com/press/2006/8334014/ "Thomson Honours Leading Indian Scientists"]
*[http://www.hinduonnet.com/2001/01/07/stories/0207000o.htm ''The Hindu'', Sunday, January 7, 2001: "Stringing together the ultimate law"]
*{{cite news|url=https://www.indiatoday.in/india/photo/profile-of-top-25-scientists-in-india-366262-2011-09-11|title=Profile of Top 25 scientists in India|date=11 September 2011|work=India Today|access-date=4 September 2019}}
{{commons category-inline|Ashoke Sen (physicist)}}

{{Padma Shri Award Recipients in Science & Engineering}}
{{Breakthrough Prize laureates}}
{{FRS 1998}}
{{SSBPST recipients in Physical Science}}
{{PadmaBhushanAwardRecipients 2010–19}}

{{Authority control}}

{{DEFAULTSORT:Sen, Ashoke}}
[[Category:1956 births]]
[[Category:Living people]]
[[Category:Presidency University, Kolkata alumni]]
[[Category:Fellows of the Indian National Science Academy]]
[[Category:Fellows of the Royal Society]]
[[Category:Indian Institute of Technology Kanpur alumni]]
[[Category:20th-century Indian physicists]]
[[Category:Stony Brook University alumni]]
[[Category:Indian string theorists]]
[[Category:University of Calcutta alumni]]
[[Category:Bengali people]]
[[Category:Recipients of the Padma Shri in science & engineering]]
[[Category:Recipients of the Padma Bhushan in science & engineering]]
[[Category:Scottish Church Collegiate School alumni]]
[[Category:Scientists from Kolkata]]
[[Category:TWAS laureates]]
[[Category:Indian theoretical physicists]]
[[Category:Bengali physicists]]
[[Category:Bengali scientists]]

Ashoke Sen - Revision history

>GreenC bot at 15:00, 14 April 2021