Gluon condensate explained

In quantum chromodynamics (QCD), the gluon condensate is a non-perturbative property of the QCD vacuum which could be partly responsible for giving masses to light mesons.

\langle G _{\mu\nu} G ^{\mu\nu} \rangle .^[1] It is not clear yet whether this condensate is related to any of the known phase changes in quark matter. There have been scattered studies of other types of gluon condensates, involving a different number of gluon fields.

For more on the context in which this quantity occurs, see the article on the QCD vacuum.

See also

• Quantum chromodynamics
• QCD vacuum and chiral condensates
• Vacuum in quantum field theory
• Quark–gluon plasma
• QCD matter

References

1. Savvidy . G.K. . Infrared instability of the vacuum state of gauge theories and asymptotic freedom . Physics Letters B . Elsevier BV . 71 . 1 . 7 Nov 1977 . 0370-2693 . 10.1016/0370-2693(77)90759-6 . 133–134. 1977PhLB...71..133S .