Editing State of matter (section)

=== Very high energy states ===
Various theories predict new states of matter at very high energies. An unknown state has created the [[baryon asymmetry]] in the universe, but little is known about it. In [[string theory]], a [[Hagedorn temperature]] is predicted for superstrings at about 10<sup>30</sup> K, where superstrings are copiously produced. At [[Planck temperature]] (10<sup>32</sup> K), gravity becomes a significant force between individual particles. No current theory can describe these states and they cannot be produced with any foreseeable experiment. However, these states are important in [[cosmology]] because the universe may have passed through these states in the [[Big Bang]].