Planck era

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Planck era

[′pläŋk ‚ir·ə]
(astronomy)
The epoch in the early universe when the gravitational interaction between particles was as strong as the other interactions.
References in periodicals archive ?
Both the KED model universe and the Milne kinematic model universes, if extrapolated to the Planck epoch, tend approximately to the Planck unit length.
At the Planck epoch the classical Schwarzschild black hole radius and the de Broglie--Compton quantum wavelength [gamma] = h/mc for Planck mass particles (maximons) turned out to be equal ones (Sapar, 1977).
Thereafter several cosmologists, among them also I, when extrapolating Friedmann equations back to the past reached the Planck epoch of the Big Bang, characterized by fundamental constants of physics.