David J. Gross, of UC Santa Barbara’s Kavli Institute for Theoretical Physics, has won a 2026 Special Breakthrough Prize in Fundamental Physics. The Breakthrough Prize Foundation said Gross was honored for a lifetime of groundbreaking contributions to theoretical physics, from the strong force to string theory, and for tireless advocacy for basic science worldwide.
Gross, 84, won the 2004 Nobel Prize in Physics. The new honor places him among this year’s six Breakthrough Prize winners, each receiving $3 million, in a ceremony that also recognized 15 early-career physicists and mathematicians with six New Horizons Prizes of $100,000 each and three women mathematicians with Maryam Mirzakhani New Frontiers Prizes worth $50,000 apiece. The total prize money this year reached $18.75 million.
In 1973, Gross and his graduate student Frank Wilczek, working independently from David Politzer, solved a gap in quantum field theory that had left the strong nuclear force poorly described in the early 1970s. Their work showed that the strong force gets weaker as particles approach each other and stronger as they move apart, which explained why quarks can never escape or be observed in isolation. That discovery helped launch quantum chromodynamics, described here as the theory of the strong force and the final foundation stone of the Standard Model of particle physics.
The prize also recognizes how Gross’s influence has extended beyond one result. He and his collaborators developed a simplified quantum field theory that helped explain how particles can acquire mass, and later pursued theoretical approaches to unify all fundamental forces, including gravity, in a single framework known as heterotic string theory. He has also held leadership roles including director of the Kavli Institute for Theoretical Physics and president of the American Physical Society.
The Breakthrough Prizes, now in their 14th year, are popularly known as the Oscars of Science and have awarded more than $340 million over the life of the program. Mark Zuckerberg and Dr. Priscilla Chan said this year’s laureates show what great science can do, deepening understanding of the world and leading to discoveries that improve millions of lives. Yuri Milner said they are building a cathedral of knowledge on foundations laid down by the giants who came before them, adding that civilization and its future owe a debt to them.
For UC Santa Barbara, the latest award adds Gross to a short list of recent honorees that includes Henry Maxfield in 2021, Andrea Young in 2018, Joseph Polchinski in 2013, 2014 and 2017, and Joe Incandela in 2013. The recognition makes clear that the breakthrough behind the prize was not just a famous result from 1973, but a line of work that still defines modern particle physics.