João Penedones
{{short description|Portuguese theoretical physicist}}
{{notability|Academics|date=April 2015}}
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| name = João Penedones
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| image = Portrait of Joao Penedones in 2015.jpg
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| caption = João Penedones in 2015
| birth_date = {{Birth date and age|1980|8|2}}
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| citizenship = Portugal
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| workplaces = EPFL, Universidade do Porto
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| thesis_title = High Energy Scattering in the AdS/CFT Correspondence
| thesis_url = https://arxiv.org/abs/0712.0802
| thesis_year = 2007
| doctoral_advisor = Miguel Costa
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| website = https://www.epfl.ch/labs/fsl/
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João Miguel Augusto Penedones Fernandes (born {{Birth date|1980|8|2}} in Porto, Portugal) is a Portuguese theoretical physicist active in the area of quantum field theory. He is currently an associate professor at the École Polytechnique Fédérale de Lausanne (EPFL).{{Cite web|title=Prof. João Penedones|url=https://www.epfl.ch/labs/fsl/penedones/|access-date=2020-12-02|website=www.epfl.ch|language=en-GB}}{{Cite web|last=ORCID|title=Joao Penedones (0000-0003-0345-4836)|url=https://orcid.org/0000-0003-0345-4836|access-date=2020-12-02|website=orcid.org|language=en}}{{cite web|url=https://actu.epfl.ch/news/promotion-of-an-associate-professor-and-two-adjo-2/|title=Promotion of an Associate Professor and two Adjoint Professors at SB|publisher=EPFL|date=2023-05-26|accessdate=2024-04-30 |last1=Testa |first1=Andrea }}
Career
João Penedones studied physics at the University of Porto, where he obtained his undergraduate degree in 2002. He then obtained a Certificate of Advanced Studies in Mathematics from the University of Cambridge in 2003. In 2007, he got his PhD from the University of Porto, working in the field of string theory under the supervision of Miguel Costa.{{cite arXiv|last=Penedones|first=Joao|date=2008-02-06|title=High Energy Scattering in the AdS/CFT Correspondence|class=hep-th|eprint=0712.0802}} He then performed postdoctoral work at the Kavli Institute for Theoretical Physics (University of California, Santa Barbara) from 2008 to 2010 and at the Perimeter Institute for Theoretical Physics in Waterloo, Canada from 2010 to 2011. He then returned to the University of Porto to work as a research fellow until 2015, when he was named tenure track assistant professor at EPFL.{{Cite web|last=Evangelista|first=Sandy|date=2015-08-12|title=Appointments at EPFL|url=https://actu.epfl.ch/news/appointments-at-epfl/|language=en}}
Research
João Penedones leads the Fields and Strings Laboratory at EPFL, focusing on questions related to Quantum Field Theory and String Theory.{{Cite web|title=Fields and Strings Laboratory|url=https://www.epfl.ch/labs/fsl/|access-date=2020-12-02|website=www.epfl.ch|language=en-GB}}{{Cite web|title=Research|url=https://www.epfl.ch/labs/fsl/research/|access-date=2020-12-02|website=www.epfl.ch|language=en-GB}} One of their research objectives is to develop better non-perturbative methods to study quantum field theories using conformal and S-matrix bootstrap approaches. Another of their objectives is to explore the gauge/gravity duality to investigate questions related to quantum gravity.
One of João Penedones' most important contributions is a conjecture about the conditions upon which a conformal field theory has a gravity dual, later proved by A. Liam Fitzpatrick and Jared Kaplan.{{cite journal|author1=Heemskerk, Idse|author2=Penedones, Joao|author3=Polchinski, Joseph |author4= Sully, James|year=2009 |title=Holography from Conformal Field Theory |arxiv=0907.0151 |journal=JHEP |volume=0910 |issue=10 |page=079 |doi=10.1088/1126-6708/2009/10/079|bibcode=2009JHEP...10..079H |s2cid=17260475 }}{{cite journal|author1=Fitzpatrick, A. Liam |author2= Kaplan, Jared|year=2012 |title=Analyticity and the Holographic S-Matrix |arxiv=1111.6972 |journal=JHEP |volume=1210 |issue=10 |page=127 |doi=10.1007/JHEP10(2012)127|bibcode=2012JHEP...10..127F |s2cid=85443186 }}
Correlation functions of local operators living on the boundary of AdS are the natural analogues of scattering amplitudes. This connection is made more manifest once the correlation function is expressed in terms of Mellin amplitudes as suggested by Penedones.{{cite journal|author= Penedones, Joao |year=2011 |title=Writing CFT correlation functions as AdS scattering amplitudes |arxiv=1011.1485 |journal=JHEP |volume=25 |issue=3 |page=01 |doi=10.1007/jhep03(2011)025|bibcode=2011JHEP...03..025P |s2cid=119218113 }}
References
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Category:Portuguese physicists
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