Steven Scott Gubser (May 4, 1972 – August 3, 2019) was a professor of physics at Princeton University.
His research focused on theoretical particle physics, especially string theory, and the AdS/CFT correspondence. He was a widely cited scholar in these and other related areas.
Gubser did foundational work in the AdS/CFT correspondence as a graduate student. In particular, his 1998 paper Gauge Theory Correlators from Non-Critical String Theory with his advisor Igor Klebanov and another Princeton physics professor Alexander Markovich Polyakov, made a precise statement of the AdS/CFT duality. It is one of the all-time top cited papers in theoretical high-energy physics, and is commonly known, along with Edward Witten's 1998 work Anti De Sitter Space And Holography, as the GKPW dictionary. After receiving a Ph.D. in 1998 from Princeton, Gubser became a Junior Fellow at Harvard University before taking a position as an assistant professor at Princeton. In 2001, he moved to the California Institute of Technology but returned to Princeton in 2002.