Joshua A. Frieman
theoretical astrophysicist
Joshua A. Frieman is a theoretical astrophysicist who lives and works in the United States. He is Associate Lab Director of the Fundamental Physics Directorate at SLAC, formerly a senior scientist at Fermilab, and a professor of astronomy and astrophysics at the University of Chicago. Frieman is known for his work studying dark energy and cosmology, and he co-founded the Dark Energy Survey experiment. He was elected a member of the National Academy of Sciences in 2022.
Education
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 and his thesis was titled Particle Creation in Inhomogeneous Spacetimes.
Career
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. During the 1990s, one of the topics he studied was cosmic inflation.
The public source identifies “Joshua A. Frieman” as theoretical astrophysicist. This brief keeps that definition visible, then builds a research path around Joshua, Frieman and theoretical.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Joshua A. Frieman”, the useful work is to connect “theoretical astrophysicist” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q100978619. VIAF identifies the subject as 66637165. The Library of Congress control number is n98027558. 1 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2022, 1981, 1985 and 1988.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Joshua A. Frieman”, its source revision and the description used here.
- Expand the search: follow Joshua A. Frieman primary sources, Joshua A. Frieman archive and Joshua research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Joshua A. Frieman”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Joshua A. Frieman” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.