Professor Fried joined the department in 1964 specializing in functional methods developed by Schwinger and others. According to his obituary, he authored four books and approximately one hundred and forty scientific papers. He knew personally many twentieth-century physics luminaries including Robert Oppenheimer, Freeman Dyson, and, especially, Julian Schwinger. He lectured and performed research in university departments and institutes throughout the world, principally in Paris, Marseille, and Nice, and was Director of the Workshops on Non-Perturbative Quantum Chromodynamics at the American University of Paris and La Citadelle of Villefranche-sur-mer. He continued active research throughout his life, completing his fourth book in 2014 at age 84, and publishing scientific papers well into his 90s. He retired from the department in 1997.

More information can be read in Professor Fried's official obituary.