In physical cosmology, the grand unification epoch is a poorly understood period in the evolution of the early universe following the Planck epoch and preceding inflation. This places it between about 10 −43 seconds after the Big Bang and 10 −35 seconds, when the temperature of the universe was comparable to the characteristic temperatures ...

A Grand Unified Theory (GUT) is any model in particle physics that merges the electromagnetic, weak, and strong forces (the three gauge interactions of the Standard Model) into a single force at high energies.

The Grand Unified Theory epoch followed the Planck epoch, characterized by the splitting off of the gravitational force. The combination of the general relativity and quantum mechanics is the hallmark of the grand unified theory.

Jul 21, 2021 · From the epochs of the Universe, the Grand Unified Theory Era follows the Planck Era. The epoch occurs between 10^-43 seconds and 10^-35 seconds after the Big Bang. It might seem like a brief period, but some important developments occur during this period.

Lepton Epoch Ends when the universe is about 100 seconds old During this epoch, the leptons (electrons, neutrinos, and other light particles) are still produced in pairs, because they are light

Summary of Eras and Epochs • Read Chapter 27.2, More Precisely 27-1, and Chapter 27.3 • Radiation Era • Planck Epoch • 0 seconds: Big Bang • Quantum gravity • GUT Epoch • 10-43 seconds: Gravity separates • Grand Unified Theory • Quark Epoch • 10-35 seconds: Strong force separates • Electroweak force

First thing today, we’ll discuss the fact that there’s an epoch, associated with a density, a temperature, a mass, and a timescale ’earlier’ than which it makes no sense to even discuss the notions of time and space.

The GUT epoch is a period in the early universe, occurring between $10^{-43}$ and $10^{-36}$ seconds after the Big Bang, when the strong, weak, and electromagnetic forces were unified into a single force. It marks an important phase in cosmology where Grand Unified Theories (GUTs) are …

Once gravity had separated out, it is thought that a single field remained, a field which is described by the Grand Unified Theory (sometimes abbreviated to GUT) and hence this period is known as the Grand Unification Epoch.

Accordingly, we will refer to this period of time as the GUT epoch. Theory indicates that at temperatures below 10 28 K, the strong nuclear force becomes distinguishable from the electroweak force (the unified weak and electromagnetic force).