Joshua A. Frieman

Frieman received his undergraduate degree in physics from Stanford University in 1981 and his PhD in physics from the University of Chicago in 1985. His doctoral advisor was Michael Turner{{Cite web|title=Joshua A. Frieman - INSPIRE|url=https://inspirehep.net/authors/1009410|access-date=October 23, 2020|website=inspirehep.net}}{{Cite web|title=The Department of Astronomy and Astrophysics {{!}} Joshua A. Frieman|url=https://astro.uchicago.edu/people/joshua-a-frieman.php|access-date=October 23, 2020|website=astro.uchicago.edu}} and his thesis was titled Particle Creation in Inhomogeneous Spacetimes.{{Cite thesis|title=Particle creation in inhomogeneous spacetimes|url=https://catalog.lib.uchicago.edu/vufind/Record/994576|date=1989|language=en|first=Joshua Adam|last=Frieman}}

After completing his PhD, Frieman held a postdoc position at SLAC National Accelerator Laboratory's Theory Group. Afterwards, Frieman became a scientist at Fermilab in 1988. He was head of that lab's Theoretical Astrophysics Group from 1994 to 1999.{{Cite web|title=Joshua Frieman {{!}} Kavli Institute for Cosmological Physics {{!}} The University of Chicago|url=https://kavlicosmo.uchicago.edu/people/profile/joshua-frieman/|access-date=October 23, 2020|website=kavlicosmo.uchicago.edu}} During the 1990s, one of the topics he studied was cosmic inflation. In 1997, he was elected a Fellow of the American Physical Society for "his many contributions in the application of particle physics to early-universe cosmology."{{Cite web|title=APS Fellow Archive|url=http://www.aps.org/programs/honors/fellowships/archive-all.cfm|access-date=October 23, 2020|website=www.aps.org|language=en}}

During the 2000s, Frieman led the Sloan Digital Sky Survey's (SDSS) Supernova Survey, which discovered over 500 type Ia supernovae, aiding the study of cosmic expansion.{{Cite web|date=December 9, 2019|title=The Big Questions: Josh Frieman on Dark Energy|url=https://www.energy.gov/science/articles/big-questions-josh-frieman-dark-energy|access-date=October 23, 2020|website=Energy.gov|language=en}} He also served as chair of the SDSS's Collaboration Council and co-chair of its Large-Scale Structure Working Group. In these roles, he led measurements of the large-scale structure of the universe and of weak gravitational lensing.{{Cite web|title=Joshua A. Frieman|url=https://www.amacad.org/person/joshua-frieman|access-date=October 23, 2020|website=American Academy of Arts & Sciences|language=en}} Building on his work with SDSS, Frieman later co-founded and served as director of the Dark Energy Survey (DES) with the goal of collecting data that would help physicists determine which theoretical models explaining the increasing rate of the expansion of the universe might be correct. The Dark Energy Survey began its observations in 2013 and concluded them in 2019.{{Cite web|title=Overview|url=https://www.darkenergysurvey.org/the-des-project/overview/|access-date=October 23, 2020|website=The Dark Energy Survey|date=July 8, 2019 |language=en-US}} These observations produced a large amount of data, which the DES collaboration is still analyzing. In 2004, Frieman was elected a fellow of the American Association for the Advancement of Science{{Cite web|title=Elected Fellows {{!}} American Association for the Advancement of Science|url=https://www.aaas.org/fellows/listing|access-date=October 23, 2020|website=www.aaas.org|language=en}} and also became a member of the Fermilab Center for Particle Astrophysics when the lab created the center that year.{{Cite journal|date=January 2005|title=ANNUAL REPORT: Fermi National Accelerator Laboratory The Fermilab Particle Astrophysics Center|url=http://adsabs.harvard.edu/full/2005BAAS...37...55.|journal=Bulletin of the American Astronomical Society|volume=37|pages=55–62|bibcode=2005BAAS...37...55. |via=ui.adsabs.harvard.edu}} Frieman became head of Fermilab's Particle Physics Division in 2018.{{Cite web|last=Sundermier|first=Ali|date=May 14, 2018|title=Josh Frieman takes on role of Fermilab Particle Physics Division head|url=https://news.fnal.gov/2018/05/josh-frieman-takes-on-role-of-fermilab-particle-physics-division-head/|access-date=October 23, 2020|website=news.fnal.gov|language=en-US}} In 2019, the United States Department of Energy named him a DOE Office of Science Distinguished Scientists Fellow "for pioneering advances in the science of dark energy and cosmic acceleration, including leading the Sloan Digital Sky Survey-II Supernova Survey, co-founding the Dark Energy Survey and service as its Director."{{Cite web|date=October 16, 2019|title=Department of Energy Names Five Office of Science Distinguished Scientists Fellows|url=https://www.energy.gov/science/articles/department-energy-names-five-office-science-distinguished-scientists-fellows|access-date=October 23, 2020|website=Energy.gov|language=en}} Frieman was also elected to a three-year term as president of the Aspen Center for Physics in 2019.{{Cite web|last=Hesla|first=Leah|date=July 19, 2019|title=Fermilab and University of Chicago scientist Josh Frieman elected president of Aspen Center for Physics|url=https://news.fnal.gov/2019/07/fermilab-and-university-of-chicago-scientist-josh-frieman-elected-president-of-aspen-center-for-physics/|access-date=October 23, 2020|language=en-US}}

• American Physical Society Fellow, 1997
• American Association for the Advancement of Science Fellow, 2004
• McMaster Cosmology Lecturer, 2008{{cite web|title=McMaster Cosmology Lecture Series|website=Department of Physics and Astronomy, the University of Toledo|url=https://www.utoledo.edu/nsm/physast/activities/mcmaster_lecture.html}}
• American Academy of Arts and Sciences Fellow, 2016
• U.S. Department of Energy Office of Science Distinguished Scientists Fellow, 2019

• [https://www.aip.org/history-programs/niels-bohr-library/oral-histories/47102 Oral history interview transcript with Joshua Frieman on 6 October 2020, American Institute of Physics, Niels Bohr Library & Archives]
• [https://astro.uchicago.edu/people/joshua-a-frieman.php Frieman's staff page] at the University of Chicago Department of Astronomy and Astrophysics
• [https://kavlicosmo.uchicago.edu/people/profile/joshua-frieman/ Frieman's staff page] at the Kavli Institute for Cosmological Physics at the University of Chicago
• [https://home.fnal.gov/~frieman/ Frieman's staff page] at Fermilab
• [https://inspirehep.net/authors/1009410 Frieman's author page] at INSPIRE-HEP

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Category:Living people

Category:Fellows of the American Physical Society

Category:University of Chicago faculty

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Category:University of Chicago alumni

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Category:Year of birth missing (living people)

Category:Members of the United States National Academy of Sciences

Category:Aspen Center for Physics people