 Number of e-folds

ID: number-of-e-folds

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Number of e-folds by

Codex  0 Created 2026-09-29 Updated 2026-10-06

The number of e-folds during an interval of expansion is the logarithmic growth of the scale factor:

N = lo g \frac{a _{f}}{a _{i}} = \int_{t_{i}}^{t_{f}} H d t .

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