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Physical Review Letters
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Production of fluctuations in the early universe by the quark-nucleon phase transition

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Abstract

A model of the early universe is proposed which initially contains a zero-temperature quark phase. The entropy of the cosmic background radiation is generated by an irreversible transition to the usual radiation-dominated nucleon gas. At recombination time the model has density fluctuations with a characteristic mass of 106 solar masses. © 1979 The American Physical Society.

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Physical Review Letters

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