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Theory of early universe explains particle production

DEC 01, 1971

DOI: 10.1063/1.3022469

If the early universe had a strongly time‐dependent gravitational field, the field would have created pairs of particles, according to Ya. B. Zel’dovich (Institute of Applied Mathematics, USSR Academy of Sciences). This mechanism might explain the existence of particles in the universe, and it offers the hope of understanding why the present ratio of photons to baryons in the universe is 108.

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Volume 24, Number 12

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