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John von Neumann

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1903–1957 · quantum mechanics, mathematics, computer science
Hungarian-American mathematician and physicist whose work laid the foundations of quantum mechanics, computer science, and game theory. He gave a mathematically rigorous formulation of quantum theory (in the Hilbert space formalism), introduced the concept of von Neumann entropy, and developed the architecture of modern computers.

Biography

Born in Budapest. PhD from the University of Budapest. Professor at Princeton University and the Institute for Advanced Study. He participated in the Manhattan Project, advised the US government on defense matters. His book 'Mathematical Foundations of Quantum Mechanics' became a classic.

Key discoveries

💡 He had a phenomenal memory: he could recite entire chapters of books and pages of the telephone directory from memory.
Quote: "True mathematics is not about imposing exchange value with overhead costs, but about understanding: why is it so?"
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Related tags
density matrixentropyquantum informationquantum measurement
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spectral theorem
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Jacob BekensteinAlain AspectDavid DeutschJohn Stewart BellWilhelm WienLudwig BoltzmannSerge HarocheDavid Bohm

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