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Origin of the name "Loschmidt echo" in quantum chaos studies

The name "Loschmidt echo" is used in quantum physics for the quantity $$ M(t) \equiv \left| \langle\psi_0| e^{i H t/\hbar} e^{-i H_0 t/\hbar} |\psi_0\rangle \right|^2 $$ where $$ H = H_0 + ...
Andrew Steane's user avatar
4 votes
1 answer
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Were Julia sets discovered before the Mandelbrot set?

The Mandelbrot set was discovered by Benoit Mandelbrot in 1980. However, Gaston Julia lived from 1893 to 1978. Does this mean Julia sets, in the popular form we know them today, were discovered before ...
Penelope's user avatar
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