Editing Enantiomer (section)

==Parity violation==
For all intents and purposes, each enantiomer in a pair has the same energy. However, theoretical physics predicts that due to [[parity violation]] of the [[Weak interaction|weak nuclear force]] (the only force in nature that can "tell left from right"), there is actually a ''minute'' difference in energy between enantiomers (on the order of 10<sup>−12</sup> eV or 10<sup>−10</sup> kJ/mol or less) due to the [[weak neutral current]] mechanism. This difference in energy is far smaller than energy changes caused by even small changes in molecular conformation, and far too small to measure by current technology, and is therefore chemically inconsequential.<ref name="Eliel 1994" /><ref>{{Cite book|title=The origin of chirality in the molecules of life: a revision from awareness to the current theories and perspectives of this unsolved problem|last=Albert|first=Guijarro|date=2008|publisher=Royal Society of Chemistry|others=Yus, Miguel.|isbn=9781847558756|location=Cambridge, UK|oclc=319518566}}</ref><ref>{{Cite journal|last1=Stickler|first1=Benjamin A.|last2=Diekmann|first2=Mira|last3=Berger|first3=Robert|last4=Wang|first4=Daqing|date=2021-09-14|title=Enantiomer Superpositions from Matter-Wave Interference of Chiral Molecules|url=https://link.aps.org/doi/10.1103/PhysRevX.11.031056|journal=Physical Review X|language=en|volume=11|issue=3|pages=031056|doi=10.1103/PhysRevX.11.031056|issn=2160-3308|arxiv=2102.06124|bibcode=2021PhRvX..11c1056S |s2cid=231879820 }}</ref> In the sense used by particle physicists, the "true" enantiomer of a molecule, which has exactly the same mass-energy content as the original molecule, is a mirror-image that is also ''built from antimatter'' (antiprotons, antineutrons, and positrons).<ref name="Eliel 1994" /> Throughout this article, "enantiomer" is used only in the chemical sense of compounds of ordinary matter that are not superposable on their mirror image.