Biography:John Archibald Wheeler
| John Archibald Wheeler | |
|---|---|
| |
| Wheeler lecturing | |
| Born | 9 July 1911 Jacksonville, Florida, U.S. |
| Died | 13 April 2008 Hightstown, New Jersey, U.S.
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| Known for | Black holes; geometrodynamics; quantum gravity; Wheeler-DeWitt equation; delayed-choice thought experiment |
John Archibald Wheeler (9 July 1911 - 13 April 2008) was an American theoretical physicist whose work connected nuclear physics, general relativity, quantum foundations, and quantum gravity. He helped popularize the term "black hole" and supervised or influenced major figures in twentieth-century physics, including Richard Feynman and Hugh Everett III.[1]
Wheeler worked on nuclear fission, scattering theory, relativity, geometrodynamics, and the conceptual foundations of quantum mechanics. His delayed-choice thought experiments became important in discussions of measurement, observation, and the meaning of quantum events.
Quantum gravity and foundations
Wheeler's name is attached to the Wheeler-DeWitt equation, a central formal expression in canonical quantum gravity. It attempts to describe a quantum state of geometry and matter without relying on an external time parameter, linking curved spacetime with quantum gravity.
His influence also appears in quantum information and interpretation. Wheeler's phrase "it from bit" captured his interest in the relationship between physical reality, information, and observation.
See also
- Physics:Quantum quantum gravity
- Physics:Quantum curved spacetime
- Physics:Quantum Measurement problem
- Biography:Richard Feynman
- Biography:Hugh Everett III
References
- ↑ "John Archibald Wheeler". Institute for Advanced Study. https://www.ias.edu/scholars/wheeler.
Source attribution: Biography:John Archibald Wheeler