Richard Feynman

Richard Feynman (1918–1988) was an American theoretical physicist whose work reshaped quantum electrodynamics and introduced a visual method for calculating particle interactions.

Feynman diagrams: Feynman diagrams are graphical representations of terms in particle-interaction calculations. They turn Feynman’s perturbative calculations into a compact visual language.
Massachusetts Institute of Technology: A research university in Cambridge, Massachusetts, founded in 1861. Feynman studied physics there before pursuing graduate work at Princeton.
Freeman Dyson: A British-American theoretical physicist who unified competing formulations of quantum electrodynamics. Dyson connected Feynman’s approach with the work of Schwinger and Tomonaga.
Quantum computing: Computing that uses quantum states and operations to process information. Feynman argued that quantum systems could be simulated efficiently by quantum machines.
1965 Nobel Prize in Physics: The 1965 Nobel Prize in Physics, awarded jointly to Feynman, Julian Schwinger, and Sin-Itiro Tomonaga. The award recognized their independent contributions to quantum electrodynamics.
Path integral formulation: A formulation of quantum mechanics that sums contributions from all possible paths between states. Feynman developed this formulation into a central route to quantum theory.
Princeton University: A private research university in Princeton, New Jersey. Feynman completed his doctoral research there under John Archibald Wheeler.
Julian Schwinger: An American theoretical physicist who developed a covariant formulation of quantum electrodynamics. Schwinger shared the 1965 Nobel Prize with Feynman and Sin-Itiro Tomonaga.
Feynman–Kac formula: A mathematical relation connecting certain differential equations with expectations over stochastic processes. It links Feynman’s path-integral methods to probability and practical equation solving.
Caltech: A private science and engineering university in Pasadena, California. Feynman taught and conducted much of his postwar research there.

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